Popular Science Monthly illustrations/Categories

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List of categories assigned to the images of the Wikisource Popular Science Monthly projectUser talk:Ineuw 02:23, 16 May 2012 (UTC)




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1

16th-century way of life in drawings and prints
1800s newspapers
1868 in California
1870s advertisements
1872 advertisements
1872 events
1877 advertisements
1879 in rail transport
1880s maps
1881 in Paris
1885 advertisements
1886 in Massachusetts
1886 in Ottawa
1887 maps
1890 advertisements
1890 United States Census
1890s maps
1893 advertisements
1895 advertisements
1896 maps
1897 advertisements
1897 maps
1898 advertisements
1898 in Mexico
1898 in Spain
1899 in Yukon
1900 United States Census
1901 in California
1901 in Egypt
1902 deaths
1902 eruption of Mount Pelée
1904 in the United States
1905 in Mexico
1907 in Iceland
1907 medals
1908 in Brazil
1908 medals
1909 in the United States
1915 deaths
1915 magazines
1922 magazines
19th-century diagrams
19th-century engraved portraits of men
19th-century newspapers
19th-century oval portraits of men
19th-century portraits of men at bust length

2

2-2-2 locomotives

3

3 inch Stokes Mortar

4

433 Eros
4-4-0 locomotives of the United States

A

Abbott Lawrence Rotch
Aboriginal peoples of Canada
Abraham Trembley
Abused horses
Academic documents
Academic dresses in art
Academics from Canada
Academics from the United States
Academy of Natural Sciences
Academy of Science, St. Louis
Acaridae
Accidentals
Accipiter cooperii
Accipiter nisus (illustrations)
Acetylene
Acid-base reactions
Acipenser oxyrinchus
Acoustics
Acquarium of Naples
Acrothoracica
Actinia
Actinia rosea
Actiniaria
Action potential
Additive colors
Adirondack Mountains
Admirals of the United States Navy
Aegolius funereus
Aerodynamics diagrams
Aeronautics
Aetosauria
Afghanistan
African American history of the 1910s
African American music
African Pygmies
Agaricus
Agaricus arvensis
Agate
Agave
Agave americana
Aggression in birds
Aging
Aglaura hemistoma
Agricultural machines
Agricultural scientists
Agriculture
Agriculture in Arizona
Agriculture in Japan
Agriculture in Minnesota
Agriculture in Nicaragua
Agriculture in the United States
Agronomy
Ainu
Aiphanes caryotaefolia
Air
Air compressors
Air temperature
Airfoils and wing sections
Airships in art
Aka people
Akamon, University of Tokyo
Alarms
Al-Azhar University
Albatross (ship, 1883)
Albert Abraham Michelson
Albertus Magnus
Albinism in mammals
Albrecht von Haller
Alca torda
Alcée Fortier
Alces alces
Alcohol
Alcohol abuse
Alcoholic beverages
Alcoholism
Alcohols
Alessandro Volta
Alexander Agassiz
Alexander Bain
Alexander Dallas Bache
Alexander Graham Bell
Alexander Kovalevsky
Alexander von Humboldt
Alexander Winchell (geologist)
Alfred Brehm
Alfred Giard
Alfred M. Mayer
Alfred Nobel
Alfred Russel Wallace
Alfred Vulpian
Algae
Algarve
Algebraic diagrams
Allbritton Center
Allegheny Observatory
Allen Hall (University of Pittsburgh)
Allenton
Alligator
Allopalaeophonus
Alloys
Almonds
Alopex lagopus
Alopias vulpinus
Alpha Centauri
Alpheus Hyatt House
Alpheus Spring Packard
Alsophila pometaria
Alumni of Amherst College
Alumni of the Georg-August University of Göttingen
Amber sculptures
Amblyopsis
Ambystoma
Ambystoma mexicanum
American Academy of Arts and Sciences
American Association for the Advancement of Science
American Museum of Natural History
American Philosophical Society
Amherst College Museum of Natural History
Amoeba
Amoebozoa
Amos Eaton
Ampelopsis
Amphibious vehicles
Amphioxiformes
Anarchists from Italy
Anarhichas lupus
Anatomical plates and drawings
Anatomical plates and drawings of human nerves
Anatomical plates and drawings of the human nervous system
Anatomists from the United States
Anatomy
Anatomy of Feathers
Anatomy of the compound eyes of insects
Anatomy of the eye
Anatomy of the eyes of animals
Anchors
Ancient altars
Ancient architecture
Ancient art
Ancient earth views
Ancient Egyptian agriculture - drawings
Ancient Egyptian customs
Ancient Egyptian hoes
Ancient Greek maps of the world
Ancient jewellery
Ancient musical instruments
Ancient Roman aqueducts
Ancient Roman thermae
Ancient ships
Ancient tools
Ancient weapons
Andrew Carnegie
Andromeda Galaxy
Anemometers
Anemonia
Anguis fragilis
Angular harps
Anhima cornuta
Animal behavior
Animal brain
Animal breeding
Animal circulatory system
Animal cuticles
Animal embryos
Animal euthanasia
Animal limb bones
Animal limbs
Animal lungs
Animal physiology
Animal teeth
Animal testing
Animals with black background
Anne Sullivan
Annelida
Annelida anatomy
Annelida nervous system
Anomoepus
Anopheles
Anous stolidus
Anta de Paredes
Antarctic Circle
Antenna diagrams
Antennarius
Antennas
Antequera
Anthers
Anthonomus grandis
Anthophora
Anthozoa
Anthracothorax in flight
Anthracothorax mango
Anthropologists
Anthropologists from France
Anthropologists from the United Kingdom
Anthropologists from the United States
Anthropology
Anthropometry
Antic wine transport
Anticlines
Antilocapra americana
Antlers
Antoine-Laurent de Lavoisier
Anton Dohrn
Apatosaurus
Apertural views
Apes in art
Aphanochaete
Aphididae
Aphidoidea
Aphis
Aphrophora
Apinae legs
Apinae morphology and anatomy
Apis mellifera stingers
Apoidea legs
Apple pests
Apples in art
Apricots
April 1899
Aquariums
Aquatic plants
Aquila chrysaetos (illustrations)
Arabic numerals
Arachnactis albida
Arachnida anatomy
Araneae
Araneae chelicerae
Araneae spinnerets
Archaeological ceramics
Archaeological finds from Halland
Archaeological finds from Skåne
Archaeological museums in the United States
Archaeological objects
Archaeological sites in Arizona
Archaeological sites in Colorado
Archaeological sites in Iowa
Archaeologists from Denmark
Archaeologists from the United States
Archaeology in Mexico
Archaeology of the Americas
Archaeopteryx
Archean
Arched harps
Archegosaurus
Archibald Geikie
Archilochus colubris in flight
Archimedes
Arctonyx collaris
Areca
Areca catechu
Arecaceae botanical illustrations
Arequipa
Argillite
Argonauta
Argyropelecus hemigymnus
Arithmetic
Armbands (jewellery)
Arnold Guyot
Arrowheads
Art education
Art of Australia
Art of Papua New Guinea
Artemia salina
Artesian aquifer
Arthropoda anatomy
Arthur Balfour, 1st Earl of Balfour
Articulata
Artificial cranial deformation
Artificial roses
Artillery
Artiodactyla
Asa Fitch
Asa Gray
Asaph Hall
Asarum canadense
Ascidiacea
Ascomycota
Ash wood
Asio otus
Aspergillus
Asphalt
Asphalt (natural)
Asphalt roads
Asphaltum
Assassins
Astacus leptodactylus
Aster
Asteraceae
Asterias rubens
Asteroidea
Astronomers from Belgium
Astronomers from Canada
Astronomers from Poland
Astronomers from the United Kingdom
Astronomers from the United States
Astronomical clocks
Astronomical events
Astronomical images
Astronomical instruments
Astronomical maps
Astronomy
Astropecten
Astrophyton
Astyanax bimaculatus
Aswan Low Dam
Athene cunicularia
Athletics
Atmospheric circulation
Atmospheric fronts
Atmospheric pressure
Atolls
Atta cephalotes
Atta sexdens
Attalea
Attalea phalerata
Auditory system
August Heinrich Petermann
August Wilhelm von Hofmann
Auks in art
Aurelia
Aurelia aurita
Aurora Australis
Aurora Borealis
Austin Flint
Australia
Australian Aboriginal culture
Australian Aboriginals
Author died more than 100 years ago public domain images
Automatograph
Automobile engines
Automotive diagrams
Automotive manual transmissions
Avebury Stone Circles
Averroes
Aves
Aviation in the 1890s
Avocado
Avogadro's law
Aztec altars
Aztec art
Aztec culture
Aztec deities

B

Babies (male)
Baboquivari Mountains
Bacillus
Bacillus anthracis
Backgammon
Backstrap looms
Bacteriologists from the United States
Bactris
Bahamas
Bakersfield, California
Balaena mysticetus bones
Balance wheels
Bamboo
Banana plantations
Bananas
Baobabs in art
Barges
Barranca valley
Barringer Crater
Barthold Georg Niebuhr
Baskets
Basque language
Bassoons
Bat anatomy
Bat bones
Bat heads
Bat skeletons
Bat wings
Bathtubs
Batrachoididae
Bats in flight
Battleships of Japan
Bau Island
Bauhinia forficata
Bayeux Tapestry
Beaches
Beaks
Beam engines
Beavers
Beavers in art
Bedbugs
Bees in art
Beet cleaner loaders
Belleek Pottery
Beloit College
Belone
Belone belone
Belostomatidae
Benjamin Apthorp Gould
Benjamin Franklin
Benjamin Franklin on medals
Benjamin Peirce
Benjamin Rush
Benjamin Silliman
Benjamin Thompson
Benjamin Wilson
Benzene
Benzoquinone
Berberis
Berberis buxifolia
Berberis vulgaris
Berlin Archaeopteryx
Bermuda
Bermuda in the 1900s
Beryx decadactylus
Bessemer converter
Best Friend of Charleston
Bhil
Biblioteca Anton Dohrn (Acquarium)
Bicycle diagrams
Billfish
Binary stars
Biologists from the United Kingdom
Biology
Biology experiments
Biometrics
Bird anatomy
Bird behavior
Bird bones
Bird brain
Bird digestive system
Bird eggs illustrations
Bird flight
Bird heads
Bird heads in art
Bird leg bones
Bird migration
Bird nests
Bird nests in art
Bird respiratory system
Bird skeletons
Bird wing bones
Bird wings
Birds
Birds feeding young
Birds in art
Birds of prey
Birds of Sweden
Birds of the Bahamas
Birds of the plains
Birth and death rates
Bison bison
Bison farming
Bison fur-skins
Bits
Bivalvia anatomy
Black and white drawings of animals
Black and white microscopic images
Black and white photographic portraits of men
Black and white photographic portraits of women
Black and white photographs of California
Black and white photographs of China
Black and white photographs of landscapes
Black and white photographs of Mexico
Black and white photographs of people at work
Black and white photographs of structures
Black and white photographs of trees
Black and white portrait drawings of men
Black animals
Blenniidae
Blood cells
Blood circulation
Bluefields, Nicaragua
Blurring
Board games
Board games for people with visual impairment
Boars in art
Boat-building
Boats in Nicaragua
Bobtail
Body modification
Body piercing in Africa
Boeotia
Bogor Botanical Gardens
Bogor Regency
Bogoslof Island
Bolinas, California
Bombax
Bombus
Bombus anatomy
Bombycilla cedrorum
Bombyliidae
Bone objects
Bones
Bones of the human pelvis
Booker T. Washington
Bora Bora
Borax
Borum Eshøj
Botanical diagrams
Botanical gardens
Botanical gardens in Indonesia
Botanical mechanisms
Botanists
Botanists from Canada
Botanists from Germany
Botanists from Scotland
Botanists from Switzerland
Botanists from the United Kingdom
Botanists from the United States
Boulders
Boulders in nature
Bovidae anatomy
Brachiopoda anatomy
Brachiosaurus
Braille typewriters
Brain
Brassica oleracea
Breads
Brechites
Brewster stereoscopes
Brickwork patterns
Bridges
Bridges in New York City
Bright Angel Canyon
Bright Angel Shale
Bright Angel Trail
British K class submarines
Bronx Zoo
Bronze Age
Bronze Age artefacts
Bronze Age in Hungary
Bronze axes
Bronze tools
Brooklyn Children's Museum
Bryophyta
Bryozoa
Bubo scandiacus in art
Bubo virginianus
Bugles
Buildings in Colombo
Buildings in Mexico
Buildings in Nanjing
Buildings in Nicaragua
Buildings in Papua New Guinea
Buildings in the University of Pennsylvania
Bull engines
Burials
Burschenschaft Hannovera Göttingen
Burschenschafter
Busts of Benjamin Franklin
Busts of men
Busts of Stamford Raffles
Buteo jamaicensis
Buteo lagopus
Buteo lineatus
Buteo platypterus
Buttes


C


Cableways
Cahuilla
Caldera de Bandama
California in the 1900s
Caligus curtus
Callinectes sapidus
Calonectris
Calorimeters
Camaenidae
Cambodia in the 19th century
Cambridge, Massachusetts
Camel bones
Cameras in art
Campephilus principalis
Campi Flegrei in art
Canals in China
Cancer pagurus
Canes Venatici
Canis lupus
Cannons
Canon de 75 modèle 1897 AA gun
Cantharellus
Canyons
Carapa guianensis
Carapace
Carbides
Carbon
Carboniferous fossils
Carboniferous plants
Cardamine
Carders in art
Carding
Carding machines
Cariama cristata
Caribbean
Caribou (clothing)
Caricatures of Charles Darwin
Carl Friedrich Gauß
Carl Ritter
Carl Vogt
Carl von Linné
Carl von Linné on medals
Carl Wilhelm Scheele
Carnegie Foundation for the Advancement of Teaching
Carnegie Institution for Science
Carnegie Library of Pittsburgh
Carnegie Mellon University
Carnegie Museum of Natural History
Carnegie Museums of Pittsburgh
Carnegiea gigantea
Carnivorous plants
Caroline Herschel
Carson River
Cartel clocks
Cartography
Carved ivory objects
Carya
Carya tomentosa
Cascade Lakes (New York)
Case Western Reserve University
Case Western Reserve University faculty
Cassiopea xamachana
Cassiterite
Castanea dentata
Castles in Italy
Castor canadensis
Castor canadensis drawing and art
Castor oil
Cat behavior
Cat teeth
Cathode ray tubes
Catocala
Cats in art
Catskill Mountains
Cattle bones
Cattle legs
Cattle-drawn carts
Cave dwellings
Cave dwellings in India
Cave dwellings in Jordan
Cave dwellings in the United States
Cave temples
Cavia
CC-BY-SA-3.0
CC-PD-Mark
Cebuella pygmaea
Cedars in art
Cell biology
Celtic weapons
Cement
Cement kilns
Cerambyx
Ceratosaurus
Ceratotherium simum
Cerebral cortex
Cereus
Cervidae
Cervidae skeletons
Cervus canadensis
Cesare Lombroso
Cestoda
Cetacea
Cetacea limb bones
Cetacea skulls
Chaeropus ecaudatus
Chalcedony
Chamaeleo anatomy
Chamaerops
Chamber organs
Chang Jiang
Chang Jiang Basin
Chaoboridae
Chapelle des Sept-Saints
Characidae
Charadriiformes heads
Charles Adolphe Wurtz
Charles Conrad Abbott
Charles County, Maryland
Charles Darwin
Charles Doolittle Walcott
Charles Edwin Bessey
Charles Emerson Beecher
Charles Lyell
Charles Sanders Peirce
Charles Thomas Jackson
Charles Wheatstone
Château d'Abbadie
Château de Chantilly
Chattanooga Campaign
Chelus fimbriatus
Chemical properties
Chemical tests
Chemistry experiments
Chemistry laboratories
Chemists from England
Chemists from Germany
Chemists from Ireland
Chemists from the United Kingdom
Chemists from the United States
Chesapeake & Delaware Canal
Chesapeake Bay
Chestnuts in art
Cheyletidae
Chicken embryos
Chickens
Chien de Saint-Hubert
Child development
Children playing
Children's footwear
Children's fur clothing in art
Chilkoot pass
Chilkoot Trail
Chimaera monstrosa
China in the 1880s
Chinchilla
Chionididae anatomy
Chionis minor
Chiriqui pottery
Chironectes minimus
Chiroptera
Chladni figures
Chlamydomonas
Chlamydosaurus kingii
Chlamyphorus truncatus
Chlorophyll
Cholula
Choragic Monument of Lysicrates
Christiaan Huygens
Christian Gottfried Ehrenberg
Christian Jürgensen Thomsen
Christian mythology
Chromosomal disorders
Chrysanthemums in art
Chrysolampis mosquitus
Chukchi people
Churches in Jamaica
Chute Montmorency
Cichlasoma bimaculatum
Cicinnurus regius
Ciliophora
Cinchona
Circumpolar stars in star trails
Circus cyaneus
Circus hudsonius
Cirrostratus clouds
Cirrus clouds
Citlaltépetl
Citrus medica
City College of New York
Civil engineers from the United States
Cladoselache
Clams
Clamshell buckets
Clarinets
Claude Bernard
Claude Chappe
Clay
Clay block bricks
Climate
Climate diagrams
Climate diagrams of the United States
Climatologists
Climbing plants
Clione limacina
Clocks in England
Clockworks
Clothing
Clothing of Denmark
Cloud physics
Clouds
Cnidaria
Coal mining
Cobblestones
Coccidae
Cochinilla lanosa
Cockroach
Coconino National Forest
Coconino Sandstone
Cocoon
Codium fragile
Coffee plantations
Cognitive science
Coherers
Coins with square hole
Coins-meters
Cold Spring Harbor, New York
Cold storage
Coleoptera illustrations
Coleoptera legs
Coli
Colima Volcano
Colombo
Colomesus psittacus
Colonial Africa
Color combinations
Color contrasts
Colorado River
Colorado River in the Grand Canyon
Colors
Colorwheels
Columbia University
Columbia University campus
Columbia University faculty
Columbia University previous campuses
Combing machines
Comet Halley
Comets
Commerce in the United States
Communication
Compensation of deviation of magnetic compass
Compost
Compound eye
Compound steam engines
Compressed air locomotives
Compressed-air-powered vehicles
Compression engines
Compsognathus
Comstock Lode
Confucian temples
Congenital diseases and disorders
Congenital vertebral anomalies
Conifers in art
Conrad Gesner
Constantine Samuel Rafinesque
Constellations
Construction materials
Cooking equipment
Copper mines
Coral
Corallina
Corals in art
Cordaitales
Cordylophora caspia
Cork (material)
Corncobs
Cornell University
Cornell University buildings
Cornell University campus
Cornell University faculty
Cornets
Cornish engines
Coroados, Puris e Botucudos
Corona
Coronilla
Coronula diadema
Corroded objects
Corymorpha nutans
Coryphodon
Costs
Cotton
Cotton fibers
Crabs in art
Crayfish
Crenicichla saxatilis
Crested plants
Cretaceous
Cricetidae skulls
Cricetidae teeth
Crime statistics
Criminologists from Italy
Criminology
Crinoidea
Cro-Magnons
Crookes tube
Crop rotation
Cross sections of apples
Cross sections of trees
Crustacean anatomy
Crustacean antennae
Crustacean chelipeds
Crustacean eyes
Crustacean whole external body views with legends
Crystal
Crystallization
Crystals
Cugnot vehicles
Culex
Culicidae anatomy
Cullinan Diamond
Cultural anthropology
Cultural heritage monuments in France with known IDs
Cultural heritage monuments in Sweden with known IDs
Culture of Arkansas
Culture of Australia
Culture of Fiji
Culture of Papua New Guinea
Cunina
Cunina octonaria
Curculio
Curie Family
Currencies
Cuttlebone
Cyclocosmia
Cyclopterus lumpus
Cydia pomonella
Cydia pomonella (caterpillar)
Cygnus olor
Cylindropuntia
Cymbuliidae
Cypripedium acaule
Cypripedium reginae
Cystopteris bulbifera
Cyttaria

D

Dactylopteridae
Damaged objects
Damped wave transmitters
Daniel Coit Gilman
Daniel Garrison Brinton
Daniel Wilson (academic)
Daroca
Dartmouth College
Das Schokoladenmädchen
Dasyatidae
Dasypodidae
Dasyurus
David Brewster
David Gill
David Hosack
David Livingstone
David Rittenhouse
David Starr Jordan
Davidson Glacier
Dawson City
Dayak people
Death masks
Deception
Decorative objects
Deep sea fish
Deinotherium
Deinotherium giganteum
Delaware Bay
Delia
Delphinidae
Demodex
Demographics of Russia
Demographics of the United States
Demography
Demolitions
Dendrites
Denis Papin
Denmark
Dental diagrams
Dentelle de Valenciennes
Dentistry schools in the United States
Depth sounding devices
Dermestidae
Descriptive geometry
Deserts of Arizona
Deserts of New Mexico
Deserts of the United States
Desmarestia ligulata
Desmodium
Detonators
Diactor bilineatus
Diadectes
Diagrams from works by Nikola Tesla
Diagrams in French
Diagrams of iron and steel industry
Diagrams of the human nervous system
Diagrams of volcanoes
Diamond mining
Diamonds
Diatoms
Diceratias bispinosus
Didelphidae
Diffraction gratings
Digestive system
Dimetrodon
Dinornis giganteus
Dinosaur footprints
Dinosaur skeletons
Dinosaur skulls
Dinosauria
Dinosaurs in Their Time, Carnegie Museum of Natural History
Diomedeidae anatomy
Dionaea
Dionaea muscipula
Dionysos
Diplocaulus
Diplodocus
Dipnoi
Diptera
Diptera legs
Diptera mouthparts
Dirt roads
Discovery Expedition
Diseases and disorders of plants
Diseases and disorders of the nervous system
Disinfectants
Disinfection
Dispersion in prisms
Dissosteira carolina
Distaffs
Distillation
Distillation apparatus
Dmitri Mendeleev
Dog behavior
Dog brain
Dogs in Ancient Egyptian art
Dogs in art
Dogsleds
Dolichopoda palpata
Dolichovespula maculata
Dolichovespula nests
Doliolidae
Dolmens
Dolmens de Carnac
Dolmens in Andalusia
Dolmens in Denmark
Dolmens in France
Dolmens in Portugal
Domes in Brazil
Domesticated animals
Domesticated elephants
Donkeys in art
Doris (Nudibranchia)
Dorylus
Doryphora
Downtown Cleveland
Dracaena draco in art
Draco spilopterus
Dragons
Drawings
Drawings of apples
Drawings of axes
Drawings of Babyrousa celebensis
Drawings of bees
Drawings of birds
Drawings of bridges
Drawings of hunting
Drawings of Hydrodamalis gigas
Drawings of insects
Drawings of men
Drawings of mushrooms
Drawings of petroglyphs
Drawings of pipe organs
Drawings of primates
Drawings of ships
Drawings of snakes
Drawings of wasps
Dredge ships
Drosera brevifolia
Drosera rotundifolia
Dry Tortugas
Dryopteris
Dudley Allen Sargent
Dugong
Dulcimer
Durango
Dust
Dust storms
Dynastes hercules
E. Lewis Sturtevant
Eagle syndrome
Ear piercings
Earl Hall at Columbia University
Early aircraft
Early steam locomotives
Early telephones
Earth
Earth in art
Earthquake damage
Earthquakes
Earthquakes in Italy
Earthquakes in Jamaica
Earthquakes in the United States
Earth's atmosphere
Earth's atmosphere diagrams
East River
East River crossings
East St. Louis, Illinois
Eastern Orthodoxy
Ebenezer Emmons
Ecballium elaterium
Eccentrics (mechanism)
Echeneis
Echinoidea
Echinus
Eciton drepanophorum
Eciton erratica
Eclectic architecture in Brazil
École Nationale Supérieure des Beaux-Arts
Economic context diagrams
Economic illustrations
Economists from the United Kingdom
Economists from the United States
Economy of the United States
Ectocarpus siliculosus
Edible flowers
Edison phonograph
Edmond Halley
Eduard Zeller
Education
Education in California
Education in China
Education in Massachusetts
Education in the 1900s
Education in the Philippines
Education in the United States
Education statistics
Educational institutions established in the 19th century
Educators from the United States
Edward Atkinson
Edward Drinker Cope
Edward Frankland
Edward Livingston Youmans
Edward S. Morse
Edward Somerset, 2nd Marquess of Worcester
Edwardsia callimorphia
Egg illustrations nineteenth century
Église de la Madeleine (Paris)
Egregia
Egyptian mummies of animals
Election maps of France
Electric batteries
Electric clocks
Electric clockworks
Electric current
Electric motor parts and components
Electric power transmission
Electric shocks
Electric sparks
Electrical engineers
Electrical parts and components
Electrical power
Electrically mining rail transport until 1920
Electrically-powered land vehicles
Electrically-powered locomotives
Electrically-powered rail transport
Electrically-powered rail transport in USA until 1920
Electrically-powered rail transport until 1900
Electric-automobile parts
Electricity
Electricity diagrams
Electrolytes
Electromagnetic devices
Electromagnetic forces
Electromagnetic spectrum
Electromagnetism
Electronic devices
Electrons
Electroscopes
Electrostatic generators
Electrostatics
Elephantidae bones
Elephants
Elephas maximus
Eliakim Hastings Moore
Élisée Reclus
Elisha Gray
Elkhart Lake, Wisconsin
Embryologists
Embryology
Embryos
Emil DuBois-Reymond
Émile Picard
Employment statistics for the United States
Encelia
Endocrine diseases and disorders
Engineering diagrams
Engineers from Germany
Engineers from the United Kingdom
Engineers from the United States
English Pointer
English Renaissance theatre
Engraved portraits
Engraved portraits of men
Engraved portraits of women
Engraving
Engraving techniques
Engraving tools
Engravings
Engravings by Albrecht Dürer
Engravings of elephants
Engravings of Patagonia
Engravings of polar bears
Engravings of Tierra del Fuego
Enols
Enrico Ferri
Ensis
Entomologists
Entomologists from the United States
Entomology
Entrepreneurs from the United States
Environmental engineering
Ephedraceae
Epidemics
Epigaea repens
Epimachus
Epithelium
Equidae leg bones
Equine evolution
Equine physiology
Equipment for people with visual impairment
Equisetaceae
Equus asinus
Equus hemionus hemippus
Equus hybrids
Erasmus Darwin
Eratosthenes
Erithacus rubecula
Ermine (clothing) in art
Ernest Renan
Ernest Shackleton
Ernst Haeckel
Erodium glaucophyllum
Erosion
Erosion in the United States
Eryops
Eskimo of Greenland
Espionage
Estey Organ Co.
Ethnic groups in Indonesia
Ethnic groups in Myanmar
Ethnic groups in Vietnam
Ethnicity
Ethnographers
Ethnologists from Germany
Ethnologists from the United States
Étienne Geoffroy Saint-Hilaire
Etna eruptions
Etruscan amphoras
Etruscan pottery
Eucalyptus camaldulensis
Eucalyptus globulus
Eucalyptus macrocarpa
Eucalyptus preissiana
Euclidean geometry
Eugene W. Hilgard
Eugenicists
Eugenics
Eunectes
Euplectella aspergillum
Eurycea
Eurypharynx pelecanoides
Eurypyga helias
Euterpe oleracea
Eutima
Everglades
Evolutionary biology
Evolutionary botany
Evolutionary statistical charts
Evolutionary zoology
Exocoetidae
Exocoetus
Expeditions in Africa
Exploration
Exploration of Antarctica
Explorers from Germany
Explorers from Norway
Explorers from the United Kingdom
Explorers of the Arctic
Explosives
Expulsion of Adam and Eve
Extinct animals illustrated while extant
Extracted images
Eye examinations
Ezo

F

Facet cutting
Facial expressions
Falco sparverius
Fasciola hepatica
Fashion deformity
Fax machines
Feather River
Feathers
Feet in art
Felipe Poey
Felis silvestris
Felis silvestris anatomy
Felis silvestris lybica
Felix Hoppe-Seyler
Female scientists
Female shoes
Feniseca tarquinius
Ferdinand de Lesseps
Fermentation
Ferneries
Ferns in art
Ferries in the United States
Fertilization
Fertilizers
Fictional characters
Ficus elastica
Field hospitals
Field lines around magnets
Field work
Figs
Fiji
Files needing restoration
Filifera
Fillmore County, Minnesota
Film strips
Fingal's Cave
Finger Lakes
Finials
Finishing machines
Finistère
Fire
Fire damage
Fire organs
Fire victims
Fire-damaged buildings
Firefighting
Firefighting equipment
Firefighting in San Francisco
Firefighting in the United States
Fireless locomotives
Fireplaces
Fireproofing
Fires in Canada
Fire-starting
First aid diagrams
Fish
Fish anatomy
Fish brains
Fish eyes
Fish farming
Fish fins
Fish heads
Fish in art
Fish ponds in Hawaii
Fish scales
Fish teeth
Fisheries science
Fishermen
Fisher's Peak
Fishing boats of Russia
Fishing in Japan
Fishing traps and pots
Fishtails
Flamingos in art
Flax fields in the United States
Flight
Flight in art
Flint arrowheads
Flint axes
Flint glass
Flint knives
Flint tools
Floating
Flood damage
Floor plans of universities and colleges
Flora
Flora of Madagascar
Flora of Nicaragua
Florissant Fossil Beds National Monument
Flower diagrams
Flowers
Flowers of the United States
Flows
Fluid dynamics
Fluid mechanics
Fluorescence
Flutes
Fog from above
Fog signalling
Folk dance
Folklorists from Canada
Folklorists from the United States
Folsom State Prison
Foot binding
Foraminifera
Forbesichthys agassizii
Forcipiger
Forest rangers
Forestry
Forests in the United States
Forging
Formicidae
Fossil fish
Fossil Insecta
Fossil plants
Fossils of the United States
Fourier analysis
Fox Terrier
Foxes
Fractals
Fram (ship, 1892)
Francis Darwin
Francis Galton
Francis Lieber
Francis Trevelyan Buckland
François Arago
François Huber
Franz Boas
Frederick Augustus Porter Barnard
Frederick Courteney Selous
Fregata magnificens
French Indochina
French Polynesia
French Protectorate of Tunisia
Frequency polygons
Freshwater fish
Fretwork
Friedrich Wilhelm August Argelander
Friedrich Wilhelm Kuhnert
Friedrich Wöhler
Frogs
Frogs in art
Front axles
Frost patterns
Fruits
Fucus vesiculosus
Fuel tanks
Fulgurite
Fumigation
Funaria hygrometrica
Fungi
Fungus diagrams
Fur boots
Fur collars in art
Fur garments
Fur garments in art
Fur gloves
Fur linings in art
Fur mosaics
Fur trousers
Fusaro

G

Galileo Galilei
Ganoderma applanatum
Gas meters
Gas wells
Gastornis
Gastropoda anatomy
Gatun Lake
Genera of Dinosauria
Geneticists
Genetics
Genipa
Geochemists
Geodesy
Geographers from the United Kingdom
Geographers from the United States
Geographical illustrations
Geographical poles
Geography of France
Geography of Germany
Geography of Scotland
Geography of the United States
Geologic formations
Geologic time scale
Geological diagrams
Geological instruments
Geological maps of Belgium
Geological maps of Europe
Geological maps of Italy
Geological maps of Russia
Geological maps of Ukraine
Geologists from Canada
Geologists from France
Geologists from Russia
Geologists from Scotland
Geologists from Switzerland
Geologists from the United Kingdom
Geologists from the United States
Geology
Geology museums
Geology of California
Geology of Hawaii
Geology of Italy
Geology of New York
Geology of Russia
Geology of the United States
Geology of Utah
Geology timelines
Geometridae
Geometry diagrams
Geomorphology
Geophysical diagrams
Geophysics
George Biddell Airy
George Boole
George Brown Goode
George Campbell, 8th Duke of Argyll
George Engelmann
George Frederick Barker
George Gabriel Stokes
George Henry Lewes
George I of Great Britain
George Stephenson
Georges Massias
Geranium dissectum
Geranium robertianum
Gerardus Mercator
Gerocarne
Geysers
Geysers of Iceland
Geysers of New Zealand
Geysers of the United States
GFDL
Ghats
Giambattista della Porta
Gibbons in art
Gibson Hall, Tulane
Giffard dirigible
Gila River
Gills
Giraffes in art
Glacial erosion
Glacial geomorphology
Glacial lakes
Glaciers
Glaciers of Alaska
Glaciers of British Columbia
Glaciers of Greenland
Glands
Glass
Glass industry
Glass industry in the United States
Glassware
Glazed terracotta
Global meteorological maps
Goats
Gold coins of the United States
Gold mining in Alaska
Golf balls
Gophers
Gorgets
Gorilla bones
Gorilla skeletons
Gorilla skulls
Gorillas in art
Gottfried Wilhelm Leibniz
Goura
Gout
Government
Grain
Grand Canyon
Grand Canyon National Park
Grand Menhir d'Er Grah
Grand pianos by Steinway & Sons
Grapevines
Graphite
Graphs relating to muscles
Grasshopper beam engines
Gravel roads
Gravitation
Great Lakes
Great Mogol Diamond
Green River (Utah)
Greenland
Gregarines
Greyhound
Grotte de Marsoulas
Grotte des Baoussé Rossé
Grottoes
Group photographs
Grove Karl Gilbert
Guangzhou
Guillaume Le Gentil
Gulo gulo
Gunstocking
Gustav Nachtigal
Gustav Robert Kirchhoff
Gymnotidae
Gyroscopes

H

H. L. Hunley (submarine, 1863)
H. W. Peckwell
Hackelia
Hadrosaurus
Hagadösen
Hair fashion
Hairdressing
Hällkistor i Sverige
Halls of Colleges of Cambridge University
Halocampa chrysanthellum
Hamilton, Bermuda
Hammers
Handwriting
Hangzhou
Harmonia axyridis
Harmonics
Harmony
Harpagophytum procumbens
Harps
Harps in ancient Egypt
Harpsichord
Harpswell, Maine
Harvard College Observatory
Harvard Medical School
Harvard observatory, Arequipa
Harvard University
Harvard University alumni
Harvard University faculty
Hatcheria macraei
Hawaii
Hawaii in the 1890s
Hawaii in the 1900s
Hazardous materials
Hazelton, British Columbia
Health statistics
Hearing
Heart (organ)
Heinrich Dove
Heinrich Maschke
Heinrich Rudolf Hertz
Heinrich Schliemann
Heinrich Wilhelm Waldeyer
Helen Keller
Helix pomatia
Hematology
Hemitripteridae
Hemp
Hemp fields
Henri Milne-Edwards
Henri Moissan
Henri Sainte-Claire Deville
Henry Cavendish
Henry Charlton Bastian
Henry Draper
Henry E. Steinway
Henry Enfield Roscoe
Henry Fairfield Osborn
Henry Rowland
Henry Shaw
Henry Sidgwick
Henry Ulke
Hepatica
Herbert Spencer
Hercules (constellation)
Heredity
Heritage properties in Canada with known IDs
Hermann von Helmholtz
Hermit Shale
Herpestes
Herschel Island
Hesperornis bones
Hesperornis skeletons
Heteralocha acutirostris
Heterodontus portusjacksoni
Heterotrichea
Hevea brasiliensis
Hexactinellida
Hibernation
Hibiscus moscheutos
Hieronymus Bock
High jump
High pressure systems
Highways in the United States
Hills
Hipparchia
Hippopotamus amphibius in art
Hippopotamus in zoos
Hippuris
Hirudo medicinalis
Histology of the human esophagus
Histology of the ovary
Historians from Germany
Historians from Switzerland
Historical dental instruments
Historical fire engines of the United States
Historical images of Corrèze
Historical images of Haridwar
Historical images of Jamaica
Historical images of Mexico
Historical images of Mount Etna
Historical images of Pompeii
Historical images of Posillipo
Historical images of Sri Lanka
Historical images of Villa comunale (Naples)
Historical images of Vulcano Island
Historical images of Waikiki
Historical microscopes
Historical photographs of Navajo people
History of Africa
History of Brive-la-Gaillarde
History of cavalry
History of Cleveland
History of electric batteries
History of electric motors
History of electrically-powered rail transport
History of electromagnets
History of engineering
History of Germany
History of Hayward, California
History of Madagascar
History of Nicaragua
History of Pachuca
History of psychology
History of science
History of the steam locomotive
History of the University of Tokyo
History of wine
History of Yucatán
HMS Beagle (ship, 1820)
HMS Vindictive (ship, 1897)
Hoaxes
Hoes
Höks härad
Hollow ware
Homestead meteorite
Homing pigeons
Hominoidea
Homo neanderthalensis
Homo neanderthalensis finding sites
Hong-Kong
Hongo Campus, the University of Tokyo
Hooves
Hopi
Hoplophoneus
Horse behavior
Horse hooves
Horse leg bones
Horses
Horses in prehistoric art
Hospital ships
Hot air engines
House construction
Household appliances
Houstonia
Howe truss
Hubbard Glacier
Hugo de Vries
Hugo Münsterberg
Huichol beadwork
Human anatomy, cervical vertebrae
Human behavior
Human bones
Human brain (superior view)
Human feet
Human heads
Human skeletons
Human skulls
Human–machine interaction
Human-powered looms
Hummingbirds in art
Humphry Davy
Hunters
Hunting
Huts in art
Hyalonema sieboldi
Hybridization
Hydra (genus)
Hydra vulgaris
Hydras
Hydridae
Hydrobatidae
Hydrobatidae in flight
Hydrocarbons
Hydrodictyon
Hydrodynamics
Hydroelectric power in Canada
Hydroelectric power in the United States
Hydroelectricity
Hydrogeological cross sections
Hydrology
Hydrometers
Hydrozoa
Hylocereus undatus
Hymenoptera morphology
Hyophorbe indica
Hypnosis
Hypoderma spec.

I

Ice
Ice age
Ice age 72k-12k BP
Ice crystals
Ice dams
Ice manufacturing plants
Ice rinks in France
Iceland
Iceland in the 19th century
Ichthyococcus ovatus
Ichthyologists from the United States
Ichthyology
Ichthyornis
Ichthyosaurus
Ideas
Ideogram
Iguana iguana
Iguanodon
Illustrations of cats
Illustrations of fish
Illustrations of fossils
Illustrations of fungi
Illustrations of megaliths in Sweden
Illustrations of plant fossils
Ilongot
Image distortions
Images of low quality
Images with annotations
Images with borders
Images with extracted images
Images without source
Immigration to the United States charts and graphs
Impact craters on Earth
Imperial Universities (Japan)
Inaccurate paleoart without rationale
Inclinometers
Incubators (microbiology)
Indian reservations in the United States
Indian reservations in Washington (state)
Indiana University faculty
Indigenous peoples of Mexico
Indigenous peoples of Siberia
Indigenous peoples of South America
Induction coils
Induction motors
Industrialists from the United States
Inosculation
Insect anatomy pictures with legends
Insect egg illustrations
Insect eggs
Insect internal anatomy whole body schemes
Insect morphology and anatomy
Insect mouthparts
Insectivorous Plants
Institut Pasteur (Paris)
Insurance
Interference patterns
Internal combustion engines
International organizations
Inuit
Inuit (clothing)
Inuit clothing
Inuit of Canada
Inventional geometry
Inventions
Inventors from the United Kingdom
Inventors from the United States
Invertebrate brain
Invertebrate digestive system
Invertebrate internal anatomy schemes (whole body)
Invertebrate nervous system
Ipnops murrayi
Iriartea deltoidea
Irish Water Spaniel
Iron
Iron meteorites
Iron ships
Iroquois
Irrigation in the United States
Isaac Newton
Ishi
Isla de la Tortuga
Islands in art
Islands of Sweden
Islands of the Bahamas
Islay
Isoetes
Isoptera
Isthmus of Panama
Isthmus of Tehuantepec
Istiophorus albicans
Ivory

J

Jacob Leupold's steam engine
Jacobus van 't Hoff
Jamaica
James Buchanan Eads
James Clerk Maxwell
James Craig Watson
James Dwight Dana
James Fergusson (architect)
James Glaisher
James Prescott Joule
James Smithson
James Watt
James Wilson
Japan And Japanese
Japanese writing
Jasper
Jean Baptiste Boussingault
Jean Louis Armand de Quatrefages de Bréau
Jean-Baptiste Dumas (chemist)
Jean-Baptiste Lamarck
Jean-Martin Charcot
Jeffries Wyman
Jens Jacob Asmussen Worsaae
Jessie Tarbox Beals
Jet necklaces
Jiujiang
Johann Gottlieb Fichte
Johannes Kepler
John Bartram
John Dalberg-Acton, 1st Baron Acton
John Dalton
John Ericsson
John Ericsson monument, New York
John Hopkins University
John James Audubon
John Lawrence Smith
John Le Conte
John Locke
John Lubbock, 1st Baron Avebury
John Muir
John Stringfellow
John Strong Newberry
John Stuart Mill
John Torrey
John Turtle Wood
John Tyndall
John Wesley Powell
John William Dawson
John William Draper
John William Strutt, 3rd Baron Rayleigh
Johns Hopkins University
Johns Hopkins University faculty
Joints
Joseph Dalton Hooker
Joseph Henry
Joseph Henry Gilbert
Joseph LeConte
Joseph Leidy
Joseph Lister, 1st Baron Lister
Joseph Lovering
Joseph Norman Lockyer
Joseph Plateau
Joseph Prestwich
Joseph Priestley
Joseph von Fraunhofer
Joseph Whitworth
Josiah Parsons Cooke
Journalists from the United States
Juglandaceae botanical illustrations
Jules Célestin Jamin
Julia Pastrana
Julius Adolph Stöckhardt
Julius E. Hilgard
Julius Robert von Mayer
Julius Wiesner
July 1899
July 1902
Juneau, Alaska
Jupiter (planet)
Jurassic plants
Justice
Justus von Liebig

K

K?lauea
Kaibab Limestone
Kailash temple (Ellora)
Kakichi Mitsukuri
Kallima paralekta
Kalmia
Kalmia latifolia
Karl Friedrich Mohr
Kelvin-Helmholtz waves
Ketones
Kew Gardens
Kew Gardens Palm House
Kew Gardens Temperate House
Kimberley Mine
Kinematics
King's College Chapel, Cambridge
Kirlian photography
Kitchens
Kites
Klondike Gold Rush
Klondike Gold Rush Maps
Knots
Koh-i-Noor Diamond
Koto players
Kumamoto Castle
Kwakwaka'wakw
Kyushu

L

La Brea Tar Pits
Lace
Lactophrys
Laholm Municipality
Lake Erie
Lake Manapouri
Lake Wakatipu
Lakes of Greece
Lakes of Japan
Lakes of New Zealand
Lakes of Yellowstone
Lamniformes
Land management
Land reclamation
Land reclamation in the United States
Land sailing
Landslides
Langley Aerodrome
Language
Language spread maps
Languages
Languages of Ireland
Languages of the United Kingdom
Laridae nests
Larus argentatus
Larvae
Larynx
Lasioderma serricorne
Lassen Peak
Lassen Volcanic National Park
Lathyrus
Lathyrus sativus
Latin alphabet charts
Laysan
Lazare Nicolas Marguerite Carnot
Leaf diagrams
Leather
Leather boots
Leather processing
Leather shoes
Leather working tools
Leaves
Leeches
Lemmings in art
Lemmus lemmus
Lemur catta
Lemur catta anatomy
Lenape
Lenses
Leo Lesquereux
Leopard cat (clothing)
Leopardus colocolo
Lepidodendron
Lepidoptera anatomy
Lepidoptera illustrations
Lepidosirenidae
Lepisma
Lepisosteus platostomus
Lepomis megalotis
Leptinotarsa decemlineata
Lewis David von Schweinitz
Lewis H. Morgan
Lewis Morris Rutherfurd
Leyden jars
License migration not eligible
Lichenalia
Lichens
Lick Observatory
Life jackets
Life saving in the United States Coast Guard
Ligaments
Light
Light and shadow
Light mills
Light scattering
Lightning
Lightning rods
Lignified fossils
Lignite
Limacodidae (caterpillar)
Limbs
Linguistic maps of France
Linguistic maps of the United States
Linguists from Italy
Lingula
Linnaea borealis
Linotype
Linville Gorge Wilderness
Lipari
Lips
Liquefaction
Liriope tetraphylla
Lithographs of Greece
Little Colorado River
Livestock management
Loam
Locomotion
Locomotives designed by George Stephenson
Logarithmic spiral
Logging
Logging in the United States
Logic puzzles
Logos of companies
Longcase clocks
Lonicera
Lonicera botanical illustrations
Looms
Lophiidae
Lophius americanus
Lophorina superba
Lotus creticus
Louis Agassiz
Louis Figuier
Louis Hennepin
Louis Pasteur
Louis Paul Cailletet
Louis-Ernest Barrias
Louisiana Purchase Exposition
Low Memorial Library
Low pressure systems
Low tide
Lucien Marcus Underwood
Luffa
Luggage
Luigi Galvani
Luminescence
Lunar surface
Luray Caverns
Lushan
Luther Burbank
Luttra gånggrift
Lycopodiaceae
Lycoris
Lycosa tarantula
Lymnaeidae
Lynx canadensis
Lyon Playfair, 1st Baron Playfair
Lyres in art
Lysekil Municipality

M

Machetes
Machine tools
Macrocystis pyrifera
Macrolepiota
Macropodidae bones
Macropus anatomy
Madrepora
Magazine covers of the United States
Magazines about rail transport
Maggot
Maggots
Magnetic fields around current loops
Magnetos
Mahonia aquifolium
Maine
Maize
Maize fields
Makatea (Tuamotu)
Malaria
Male nude on medals
Male toplessness
Males with monkey
Mallets (tools)
Malpighia
Mammal anatomy
Mammal feet
Mammal limb bones
Mammal limbs
Mammal skulls
Mammal stomachs
Mammal tails
Mammal teeth
Mammals in Smithsonian National Zoological Park
Mammut americanum
Mammuthus
Mammuthus skeletons
Manganese oxides
Mango
Manicaria saccifera
Manis pentadactyla
Manometers
Mantis religiosa
Mantodea
Manx
Maori chiefs
Maori culture
Maple syrup
Maps of Alaska
Maps of Bretagne
Maps of Hangzhou
Maps of Jamaica
Maps of Mars by Giovanni Schiaparelli
Maps of Mars by Percival Lowell
Maps of Mount Etna
Maps of mountains in Italy
Maps of Normandy
Maps of North America
Maps of rivers of China
Maps of Scandinavia
Maps of South America
Maps of the British Isles
Maps of the indigenous peoples of North America
Maps of the United States
Maps of Western Europe
Maps of Yellowstone
Marasmius oreades
Marattia
Marcellin Berthelot
Marcello Malpighi
Marchantia polymorpha
Maria Mitchell
Marine animals
Marine biology
Marine fauna
Marine flora
Marine plants
Marine science
Marine steam engines
Marine zoology
Marquesas Islands
Mars
Marsilea
Marsilia salvatrix
Marsupialia skeletons
Marsupialia skulls
Martes martes
Martes zibellina
Martian canals
Martin Augustine Knapp
Martin Hans Boyè
Martinezia caryotaefolia
Martinique
Mary Somerville
Mas d'Azil cave
Mason County, Washington
Massachusetts Institute of Technology
Massachusetts Institute of Technology faculty
Massachussetts Institue of Technology
Massachussetts Institute of Technology
Material handling
Mathematica diagrams
Mathematical diagrams
Mathematical education
Mathematicians from Germany
Mathematicians from Italy
Mathematicians from the United Kingdom
Mathematicians from the United States
Matthew Boulton
Matthew Fontaine Maury
Mauna Loa
Maupertuis
Mauritia flexuosa
Maurolicus muelleri
Max von Pettenkofer
May 1901
Mayo Clinic
McGill University
Measuring instruments
Measuring instruments (distance)
Measuring instruments (precipitation)
Measuring instruments (temperature)
Mechanical semaphores
Medals of the United States
Media lacking author information
Media needing categories as of 24 April 2012
Media uploaded without a license as of 2012-04
Media with locations
Medicago marina
Medical instruments
Medical X-rays
Medicinal plants
Medieval legends
Medieval medicine
Medieval swords
Mediterranean
Mediterranean Sea maps
Megachilidae nests
Megaliths diagrams
Megaliths illustrations
Megaloceros giganteus skeletons
Megalosaurus
Megascops asio
Melanerpes erythrocephalus
Meles
Meliaceae botanical illustrations
Melilotus officinalis
Mellisuga minima
Melodies
Melospiza melodia
Men
Men at work in Nicaragua
Men of Korea
Men of Tunisia
Menhirs de Carnac
Men's fur clothing
Men's fur clothing in art
Mental health
Menura novaehollandiae
Mer de Glace
Mercator
Mercury (planet)
Mérimée
Mérimée with PA parameter
Merino
Meriwether Lewis
Mesoamerican pyramids
Mesostigmata
Messengers
Metals
Metamorphic rocks
Meteor showers
Meteorites
Meteorites found in the United States
Meteorographs
Meteorological diagrams
Meteorological equipment
Meteorologists from Denmark
Meteorologists from the United States
Meteors
Metrosideros polymorpha
Mexico in the 1880s
Mexico in the 1890s
Mica
Michel Chasles
Michel Eugène Chevreul
Michigan Technological University
Microbiological cultures
Microbiology
Micrococcus
Microphone schemas
Microscope diagrams
Microscopes
Microscopic images
Microscopic images of muscles
Microscopic images of stems
Microscopy
Miguel Servet
Mildew
Military communications equipment
Milk
Milk processing
Milking in art
Milky Way
Millipores
Mimosa pudica
Mimosa sensitiva
Minas Gerais
Mineralogists
Mineralogists from the United States
Mineralogy
Minimal surfaces
Mirages
Mirror stereoscopes
Misaki, Japan
Miscellaneous Salvia
Miskito
Misodendrum
Mississippi Basin
Mississippi River
Mississippian culture human effigy pottery
Missouri Botanical Garden
Missouri River
Mitchell County, North Carolina
Mites
Mitla
Mitosis
Moche pottery
Mogollon Plateau
Mojave Desert
Mola mola
Mold
Molecular biology
Molecular physics
Mollusca
Mollusca anatomy
Mollusca internal anatomy schemes (whole body)
Mollusca nervous system
Mombasa
Monkeys
Monodon monoceros
Monorhaphis chuni
Mont Blanc
Montages of ethnic groups
Monte Albán
Monte Nuovo
Monument à la mémoire de Pasteur by Alexandre Falguière
Monuments historiques classés
Monuments historiques in France by name
Moons of Saturn
Moorea
Morella
Morphological details of Coleoptera
Morse code
Mortars (tools)
Mosquito
Mosquitos
Motion
Motion work
Moulding
Mount Fuji
Mount Hamilton (California)
Mount Pelée
Mount Shasta
Mount Tamalpais
Mount Vesuvius
Mount Whitney
Mount Wilson Observatory
Mountain ranges of California
Mountains of Arizona
Mountains of Colorado
Mountains of Iceland
Mountains of New Mexico
Mountains of the United States
Muav Limestone
Mud buildings
Mud walls
Mule transport
Munkedal
Musaceae
Musca domestica
Muscina stabulans
Muscles
Museums
Music
Musical instruments
Musical instruments of Mexico
Musical scales
Mussels
Mustela
Mustela erminea
Mustela frenata
Mustela lutreola
Mustelidae
Myriapoda
Myrmecobius fasciatus
Myrmeleontidae
Mysterieuse
Myxine

N

Nagasaki, Nagasaki
Naja heads
Named diamonds
Nansen's Fram expedition
Naples, Florida
Nassak Diamond
Nassau (Cook Islands)
Nassau, Bahamas
Nasua narica
Nasua nasua
National Physical Laboratory (United Kingdom)
National Weather Service people
Native American art
Native American clothing
Native American crafts
Native American culture
Native American dance of the United States
Native American Flute
Native American jewellery
Native American masks
Native American pipes (smoking)
Native American pottery
Native Americans of California
Native musical instruments of the United States
Natural fire
Natural forms of minerals
Natural history
Natural towers
Naturalists from France
Naturalists from Germany
Naturalists from Scotland
Naturalists from the United States
Nature of Jamaica
Nature of Nicaragua
Nature of the Canary Islands
Nautilus
Navajo history
Navajo weaving
Naval ships of the United States in the 1890s
Navigational compasses
Neandertal 1
Nebulae
Needle telegraphs
Neil Arnott
Nelumbo nucifera
Nematocera mouthparts
Nematoda
Nemoptera
Neohipparion
Neolentinus lepideus
Neolithic daggers
Nephila plumipes
Nephropidae
Nereocystis luetkeana
Nervous system of Gastropoda
Neurological disorders
Neurologists from Italy
Neurologists from the United States
Neurology
Neuronal circuits
Neurons
Nevado de Toluca
New Jersey in the 19th century
New Madrid County, Missouri
New Madrid Floodway
New Orleans in the 1900s
New York Aquarium
New York Botanical Garden
New York Botanical Gardens
New York City
New York University
New Yorker people
Newcomen engines
Newspapers of the United States
Newtonian telescopes
NGC 5139
Niagara Escarpment
Niagara Falls
Niagara Falls, Canada
Niagara Falls, New York
Niagara Falls, Ontario
Niagara River
Niagara river
Nicaragua
Nicolas de Condorcet
Nicolas Léonard Sadi Carnot
Nicolaus Copernicus
Nikolai Przevalski
Nishapur
Nitroaniline
Nitrophenols
Nobel Prize medals
Nome Beach mining
Nome, Alaska
Non-Euclidean geometry
Nordic Bronze Age
Norman language
Norse colonization of the Americas
North Platte River
Northwest Coast art
Northwestern University
Notonecta
Notoryctes typhlops
November 1901
Nude men
Nueva Vizcaya
Numerals
Nutrition information
Nymphaea pubescens
Nymphalinae (caterpillar)

O

Oakman vehicles
Oars
Oats
Oaxaca de Juárez
Observatories
Observatories in Germany
Obsidian
Obsolete dinosaur restorations
Obsolete paleoart
Occipital lobe
Ocean topography
Oceanites oceanicus
Oceanographic museums
Oceanographical instruments
Oceanography
Ocotillo
Octopoda
Octopus
Octopuses in art
Ocypode quadrata
Odocoileus virginianus
Odometers
Odonthalia floccosa
Ohio Lands
Ohio River
Ohio State University
Ohio State University faculty
Ojai, California
Okefenokee National Wildlife Refuge
Okefenokee Swamp
Old dog photos
Old maps of Antarctica
Old maps of Canada
Old maps of France
Old maps of Iceland
Old maps of Mars
Old maps of Sri Lanka
Old maps of the British Isles
Old maps of the Great Lakes
Old maps of the Moon
Old maps of the United States
Old maps of the world
Oliver Evans
Olives
Olympic Games
Omega Nebula
Omphalea triandra
Oncorhynchus mykiss
Oncorhynchus tshawytscha
Ondatra zibethicus
Ondatra zibethicus anatomy
Oniscus
Onisimus nanseni
Ontario Power Generation
Onychoprion fuscatus
Operculum
Ophiacodon
Ophisaurus ventralis
Ophthalmology
Ophthalmoscope
Opisometers
Opisthocomus hoazin
Optic nerves
Optical effects
Optical fibers
Optical illusions
Optics
Optics diagrams
Opuntia
Oraibi, Arizona
Orangutans in art
Orbits of asteroids
Orbits of comets
Orchards
Orchids in art
Ordinary chondrites
Oreamnos americanus
Organ bellows
Organ schematics
Organs in art
Orion
Orion Nebula
Orlando, Florida
Ormsby MacKnight Mitchel
Ornaments
Ornithologists from the United States
Ornithology
Ornithorhynchus anatinus anatomy
Ornithorhynchus in art
Orthoptera anatomy
Orycteropus afer
Ostraciidae
Ostreidae
Ostriches in zoos
Othniel Charles Marsh
Otto Sinding
Otto Wilhelm von Struve
Overhead wire mining locomotives
Ovibos moschatus
Ovibos moschatus heads
Ovis canadensis
Ovules
Owens Lake
Owls in art
Oxalis acetosella
Oxen
Oystercatchers

P

Pacific Northwest
Padang, Indonesia
Paddle steamers
Pagodas in Jiangsu
Pain
Painters (artisans)
Painters from the United States
Palaeophonus
Palaquium gutta
Palazzo Anton Dohrn (Naples)
Palazzo Donn'Anna (Napoli)
Paleoanthropology
Paleolithic
Paleolithic sites
Paleontologists
Paleontologists from France
Paleontologists from the United States
Paleontology
Palm
Palms in art
Palythoa
Pan (genus)
Pan troglodytes anatomy
Panama Canal
Panama Canal Zone
Panama Canal Zone in the 19th century
Panama City
Panax
Pancreas
Pandanus
Panhard & Levassor 2,4 litres Phaéton
Panochthus
Panulirus argus
Papilio glaucus
Papoose
Papua New Guinea
Paradisaea apoda
Paradisaea rubra
Parallel plate capacitors
Parasites
Parc Montsouris
Pardalophora apiculata
Paris Observatory
Parlor organs
Parotia
Parsons steam turbines
Parts of pianos
Pathfinder Dam
Pathologists from the United States
Paul Bert
Paul Broca
Paul Gervais
Pavements
Pavilions in Brazil
PD Canada
PD Old
PD US
PD US USDA FS
PD-Art (PD-old)
PD-Art (PD-old-100)
PD-scan
Peachia hastata
Pears
Peas
Pediculus humanus capitis
Pedunculata
Pele's hairs
Pelycosauria
Penal system in the United States
Pendulums
Penicillium
Peniculida
Penny-farthings
Penstemon
People in 1893
People of Finland
People of Madagascar
People of Mexico
People of New Guinea
People of Papua New Guinea
People of Polynesia
People of Sweden
People of Tahiti
People of the Confederate States of America Army
People on rocks
People with automobiles
People with snakes
People with visual impairment
Perameles nasuta
Perception
Periodic table
Periophthalmus barbarus
Peromyscus maniculatus
Perseids
Persian (cat)
Pests on fruit and vegetables
Peter Lesley
Peterhouse College, Cambridge
Petrified wood
Petroglyphs in Bohuslän
Petroglyphs in Canada
Petrol engines
Petroleum-related charts and graphs
Petrologists
Petromyzon
Pezophaps solitaria
Phaethon heads
Phaethon lepturus
Phalanger orientalis
Phantascope
Phascolarctos cinereus
Phasianidae anatomy
Phenacodus
Philipp Reis
Philipsburg
Philosophers from Germany
Philosophers from Scotland
Philosophers from the United States
Philosophers of science
Phipps Conservatory & Botanical Gardens
Phocidae bones
Phocoena phocoena
Phoebetria fusca
Pholadidae
Phosichthys argenteus
Phosphoroscope
Photographic process
Photographs of the Indigenous peoples of North America
Photosynthesis
Phrynosoma cornutum
Phthiraptera
Phylloxeridae
Physalia
Physalia physalis
Physical chemists
Physicians from Germany
Physicians from Ireland
Physicians from the United States
Physicists
Physicists from France
Physicists from Germany
Physicists from Ireland
Physicists from the United Kingdom
Physicists from the United States
Physics diagrams
Physics,Mechanics,Mathematics
Physikalisch-Technische Bundesanstalt
Physiognomy
Physiologic diagrams
Physiological anomalies
Physiological graphs
Physiologists from Germany
Physiologists from the Netherlands
Physiologists from the United States
Physiology
Phytophthora
Piano action
Piano manufacturers
Pianos
Picidae anatomy
Picoides dorsalis
Picoides tridactylus
Picoides villosus
Pieris rapae
Pierre Belon
Pietermaritzburg
Piezometer
Pig legs
Pikes Peak
Pineal gland
Pinguicula vulgaris
Pinguinus impennis
Pinguinus impennis eggs
Pinguinus impennis skeletons
Pinnipedia
Pinus wood
Pipe organ parts
Pipe organs in England
Pipe organs in North Holland
Pipe organs in North Rhine-Westphalia
Pisum sativum
Pitting corrosion
Pittsburgh
Plaeontology
Plagiochila asplenioides
Planes (tools)
Planetary nebulae
Planetary science
Plankton
Planorbis
Plant breeding
Plant cells
Plant histology
Plant physiology
Plant reproduction
Plant research
Plant sap
Plant spores
Plantago lanceolata
Planters
Plasmodium life cycle
Platanthera psycodes
Platanus orientalis
Plecotus auritus
Plesiosaurus
Pleurobrachia
Pleuronectidae
Ploughs
Plumbing
Plumularia
Plumularia falcata
Pneumatics
Podocarpus
Podurae
Pointer telegraphs
Polar aurora
Polaris
Political cartoons of the United Kingdom
Politicians from Connecticut
Pollen
Pollination
Polydactyly
Polydrusus sericeus
Polyp (zoology)
Polypedates
Polypodium
Polyporaceae
Polypterus endlicherii
Pongo anatomy
Poppy seeds
Popular Science Monthly illustration of the Missouri Botanical Garden, St. Louis
Popular Science Monthly illustrations of the Missouri Botanical Garden, St. Louis
Popular Science Monthly illustrations/Unused images
Popular Science Monthly/Contributors
Population maps of the United States
Population statistics
Porcelain
Porcelain manufacturing companies
Porcelain objects
Porcelain tableware
Porcelain vases
Porifera diagrams
Porites
Port Royal
Portraits of Charles Darwin
Portraits of Immanuel Kant
Portraits of Linnaeus
Potorous
Potter's wheel
Pottery
Pottery of Mesoamerica
Power looms
Power supplies
Precipitation
Precision clocks
Precision pendulum clocks
Precolumbian civilizations
Prehistoric art
Prehistoric ivory
Prehistorical weapons
Prescott, Arizona
Presidents of the Royal Geographical Society
Pressure vessels
Pre-World War I (1890-1914) way of life
Primate anatomy
Primate brain
Primate ears
Primate hands
Primate heads
Primate limb bones
Primate skulls
Primates
Prime ministers of the United Kingdom
Primitive money
Primordial
Primordial life
Primula vulgaris
Prince Ioann Konstantinovich of Russia
Princeton University
Princeton University faculty
Printing
Printing presses
Prism spectroscopes
Prisms
Pristidae
Proboscidea teeth
Procambarus clarkii
Procamelus
Procaryota
Procyon
Procyon lotor
Profile engravings of men
Prokop Diviš
Prominence
Propane cylinders
Protista
Protopterus
Protopterus annectens
Prototaxites
Pseudofossils
PSM/Clocks
Psophia leucoptera
Psychiatrists from the United Kingdom
Psychiatry
Psychological diagrams
Psychological tests
Psychologists from the United States
Psychology
Ptarmigan
Pteranodon
Pteridophyta botanical illustrations
Pterodactylus skeletons
Pteropodidae
Pteropus rubricollis
Ptolemais
Ptolemy
Public health
Pueblo people
Puget Sound
Pulex irritans
Pulp and paper mills
Pulque
Pupae
Purse seiners
Pyrus
Pyrus communis
Pythagoras
Pythonidae anatomy

Q

Quackery
Quarries
Quaternary geology
Quetzalcoatl

R

Rabbit brain
Rabbits
Race
Radiation
Radio circuits
Radio engineering
Radio receivers
Radio tuners
Radioactivity
Radiography
Radiology
Raffaello Sanzio
Rail tunnels
Rain gauges
Rajidae
Rajomorphii
Ranatra
Rangifer tarandus
Raphia taedigera
Raphus cucullatus in art
Ravachol
Ravines
Ray Lankester
Rearrangement reactions
Recreation in the United States
Redwall Limestone
Reflection diagrams
Refraction
Refraction diagrams
Regent Diamond
Región Autónoma del Atlántico Sur
Reindeer in art
Religious items
Renault automobiles
René Descartes
Rensselaer Polytechnic Institute faculty
Reproduction
Reproductive system of Gastropoda
Reptiles of Australia
Reptilia circulatory system
Reptilia eyes
Reptilia feet
Reptilia limb bones
Rescue lifeboats
Research institutes in the United States
Research ships
Resin production in forestry
Respiration
Retina
Retouched pictures
Rhamphorhynchus
Rhetoric
Rhinocerotidae bones
Rhinopithecus roxellana
Rhizocarpon
Rhododendron maximum
Rhodostethia rosea
Rhynochetos jubatus
Rice University
Richard Anthony Proctor
Richard Owen
Richard Trevithick
Ricinus communis
Ring spinning
Rio de Janeiro Exposition of 1908
River deltas
River-related diagrams
Rivers of Iceland
Rivers of Nicaragua
Roads in Mexico
Roadworks
Roadworks in Massachusetts
Robert Boyle
Robert Bunsen
Robert Fulton
Robert Hare (chemist)
Robert Koch
Rock blasting
Rocks in thin section
Rocky Mountains
Roger Bacon
Rolling mills
Rolling mills in Sweden
Rosarno
Rosella velata
Rotifera
Rotunda (University of Virginia)
Royal Society
Royalty and chieftains of Samoa
Rubber plantations
Rudolf Clausius
Rudolf Virchow
Rulers of Prussia

S

Sabal palmetto
Sabatia stellaris
Sacculina
Sacred Heart Cathedral of Guangzhou
Sagittarius serpentarius
Sahara
Sails
Saint Hubertus
Saint Lawrence River Basin
Saint Vincent and the Grenadines
Saint-Pierre, Martinique
Salamanders
Salmon
Salmon eggs
Salmon fishing
Salmonidae
Salpa Line
Salticidae
Salton Sea
Salton Sink
Sami people
Samuel Finley Breese Morse
Samuel Pierpont Langley
San Andreas Fault
San Francisco Bay Area
San Francisco earthquake of 1906
San Francisco, California
San Gabriel, California
San Juan River (Nicaragua)
San Quentin State Prison
Sand
Sand drifting
Sandals
Sandblasting
Sapotaceae
Sappho sparganura
Sarcophaga
Sarcoptidae
Sardines
Sarsia tubulosa
Saturn (planet)
Savery steam pumps
Sawtooth tones
Saxophones
Saxotromba
Scabies
Scales
Scallop dredging
Scans by User:Swtpc6800
Scathophaga
Schaube
Schist
Science of art form
Science of tropical cyclones
Science writers
Scientific equipment
Scientific instruments
Scientific literature
Scientists
Scientists from England
Scientists from Finland
Scientists from Germany
Scientists from Italy
Scientists from the Netherlands
Scientists from the United Kingdom
Scientists from the United States
Scleractinia
Scopus umbretta
Scorpiones
Scorpiurus
Scottish National Antarctic Expedition
Scrapers
Scrophularia
Sculptures by Samuel Murray
Scyphozoa
Seabirds
Seagulls in art
Seahorse
Seahorses in art
Seal hunting
Search and rescue dogs
Securiflustra securifrons
Seeds
Seismic maps
Seismograms
Seismology
Seismometers
Selachimorpha jaws
Selaginella
Seleucidis melanoleucus
Self-published work
Selkirk Mountains
Senate House, Cambridge
Senecio
Senna corymbosa
Sepia officinalis
Sepiida
Sepsis violacea
Sequoia (extinct taxa)
Sequoiadendron giganteum (historical images)
Sericulture
Serpentes skulls
Sertularia
Sertularia cupressina
Sesia (Sesiidae)
Setophaga aestiva
Sewing
Sewing machines
Seyðisfjörður
Shamanism
Shamisen players
Shanghai in the 1900s
Shark teeth
Shearing
Shears
Sheep
Sheep skulls
Sheep stomachs
Sheet music
Shells
Shetland pony
Ship engine smoke
Ship launchings
Shoe factories
Shoe shops
Shoes
Shoeshine
Shoshone Geyser Basin
Shoulders
Siamese cats
Sickles
Side-lever engines
Sidney Sussex College, Cambridge
Siemens & Halske electric locomotives
Siemens & Halske electric mining locomotives
Sierra Club
Sierra Nevada (USA)
Siesta
Sigillaria
Silas Weir Mitchell
Silicon carbide
Silk
Silk clothing
Silk fibers
Silurian fossils
Silurian plants
Siluriformes
Silurus glanis
Silver mining
Silverware in France
Simon Newcomb
Siphonaptera
Siphonaptera morphology and anatomy
Siphonophorae
Sirius
Sisal
Skagway, Alaska
Skeena River
Skeletal variants
Skeletons
Sketches of the Moon
Sky in art
Slavic peoples
Sling weapons
Slitting mills
Smeaton engines
Smelting
Smithsonian Institution
Smithsonian Institution Building
Smithsonian Institution people
Smoke rings
Snails
Snake bites
Snakes in art
Snore
Snow crystals
Social services
Society for Psychical Research
Society Islands
Sociologists from the United States
Sociology
Socratea exorrhiza
Soil enhancement
Soil science
Soils
Solanaceae
Solanaceae botanical illustrations
Solar activity
Solar corona
Solar dishes
Solar eclipse
Solar eclipse map
Solar eclipse of 1895 March 25
Solar eclipse of 1900 May 28
Solar eclipse of 1905 August 30
Solar energy schemas and diagrams
Solar flare
Solar spectra
Solar System
Solomon Islands
Somateria mollissima
Song thrushes in art
Songbirds
Sophia Charlotte of Hanover
Sophus Müller (archaeologist)
Sorbonne Universités
Soricidae
Sound signals
Sound technology
Sound waves
South Africa in the 1900s
South African Railways
Spain in the 1890s
Spalgis
Spark-gap transmitters
Special clocks
Specimens in the Missouri Botanical Garden, St. Louis
Spectra of Galaxies
Spectral lines
Spectroscopes
Spectroscopy
Spectrum
Speed skating
Spencer Fullerton Baird
Spermatozoon diagrams
Spermophilus tridecemlineatus
Sphaerocera
Spheniscidae
Sphyrapicus varius
Sphyrnidae
Spices
Spider anatomy
Spider webs
Spinet
Spinning
Spinning in art
Spinning jennies
Spinning tops
Spinning wheels
Spinning wheels in art
Spiral galaxies
Spirula spirula
Spores
Spring houses
Springs
Squids in art
Sri Lanka in the 1900s
St. Bernard dog
Staffa
Stained glass windows in the United States
Stamens
Standing waves in air columns
Standing waves on strings
Stanford University faculty
Stanislaus National Forest
Star of the South Diamond
Starch
Starfish
State University of New York at Oswego
Static electricity
Statistical analysis
Statisticians from the United Kingdom
Statisticians from the United States
Statistics
Statistics for linguistics
Statues in Jamaica
Statues in Manila
Statues of Victoria of the United Kingdom
Steam boilers
Steam engines
Steam generating sets
Steam generator diagrams
Steam locomotives
Steam locomotives of Britain
Steam locomotives of the United States
Steam pumps
Steam shovels
Steam winches
Steamboats
Steam-powered automobiles
Steam-powered locomobiles
Steam-powered road vehicles
Steam-powered rollers
Steam-powered tractors
Steam-powered vehicles
Steamships
Steel (cross sections)
Steel industry
Steel industry (artistic representations)
Steel industry in the United States
Steelworkers
Stemonitis
Stereographic projection
Stereoscopes
Stereoscopy
Sternwheel riverboats
Stevens Brothers (engineers)
Stevens Institute of Technology
Stictodiscus
Stigmaria
Still life photography
Stilt houses in art
Stilts
Stippling
Stone Age
Stone age tools
Stone arch bridge drawings
Stone arrowheads
Stone bridges in China
Stone doors
Stone pavements
Stone tools
Stoneware
Strait of Juan de Fuca
Strait of Magellan
Strasbourg Astronomical clock (present)
Strigidae eggs
Strigidae nests
Striking mechanism
Strix aluco
Strix nebulosa
Stromatopora
Stromboli
Structure diagrams
Struthio camelus (juvenile)
Students in the United States
Stylops
Submarines of France
Submarines of the United Kingdom
Submarines of the United States
Suez Canal
Sugar industry
Suicide statistics
Sulfur
Sundials in Canada
Sunshine recorders
Sunspots
Supai Group
Superstitions
Surgeons from Germany
Surgeons from the United States
Suricata
Surnia ulula
Surveillance
Svante Arrhenius
Swahili people
Swallows in art
Swammerdamia
Swamps
Swans in art
Swim bladder
Swimming animals
Swimming in art
Swords
Swords of the 18th century
Sylviidae
Symbolophorus veranyi
Synclines

T

T. W. Wood
Tabby cats in art
Table des Marchand
Table mountain
Tahiti
Taijitu
Tailoring
Tall people
Tamias striatus
Tanning
Tapeats Sandstone
Tapestry of Italy
Tapiridae
Targets
Tarsius
Tasmania
Tasmanian Aboriginals
Tattoos
Taxidea taxus
Taxidermied Pinguinus impennis
Teachers School of Science
Technical universities
Telegraph instruments
Telegraphon
Telegraphy
Telephone diagrams
Telephone, antique
Telephones
Telescope diagrams
Telescopes
Tennesse
Tennessee River
Terebratula
Teredo
Teredo anatomy
Termite mounds
Termite nests
Terrace of the Leper King
Terracotta
Terracotta portraits
Testudines bones
Testudinidae
Tetrahedron
Tetranychidae
Tetraodontiformes
Tetrapturus albidus
Textile mills in the United States
Textiles of Mexico
Text-only screenshots
Thallograptus
Thatched roofs
The Formation of Vegetable Mould through the Action of Worms
The Great Comet of 1882
Thecosomata
Thelyphonida
Theologians from Germany
Thermal expansion
Thermoacoustics
Thermocouples
Thermodynamic diagrams
Thomas Alva Edison
Thomas Browne
Thomas Henry Huxley
Thomas Jefferson
Thomas Malthus
Thomas Messinger Drown
Thomas Nuttall
Thomas Say
Thomas Sterry Hunt
Thomas Young (scientist)
Thoracocharax stellatus
Thorns
Three-quarter view painted portraits of men, facing left
Threshing flax
Thunnus albacares
Thylacinus cynocephalus
Tibia
Tidal forces
Tides
Tierra de Brea
Tierra del Fuego
Tiffany stained glass windows
Tiles
Tiling equipment
Time
Time 01:57
Timothy Abbott Conrad
Tin mining in Indonesia
Tineidae
Tipula
Tlingit
Toilets
Tomb of Nebamun
Tongue
Tonto Group
Tools
Topographic maps
Topographic maps of California
Topography
Topography of Central America
Toponymy
Toroidal vortices
Toroweap Formation
Torpediniformes
Torpedo (fish)
Torpedo boats
Torpedoes
Torquay
Torres Strait Islands
Tortoiseshell cats
Tortugas
Total internal reflection
Tower of Hanoi
Towns in Colorado
Toxicologists
Toxotes
Train data recorders
Train timetables in France
Trametes versicolor
Tramways (industrial)
Transit of Venus
Translators from France
Transport in Canada
Travel
Tree planting
Tree roots
Tree trunks
Trees
Trematoda
Triangle geometry
Triangular numbers
Triatominae
Trichechus
Trichia
Trifid Nebula
Trifolium
Trifolium repens
Trinity College, Cambridge
Trinity College, Dublin
Trinity College, Oxford
Tristramella simonis
Trochilinae in flight
Trochilinae nests
Trombidiidae
Trombones
Tropical cyclones
Tropical fruit
Trotting horses
Truganini
Trumpets
Trypanosoma
Tuamotu
Tubularia
Tucker Porcelain Factory
Tufa
Tulane University
Tulane University Medical School
Tulare County, California
Tungidae
Tunicata
Tunnelling
Turbinia (ship, 1894)
Turdus migratorius
Turpentine
Turret clocks in the United Kingdom
Turritopsis
Turtles
Turtles cultivation
Turtles in art
Tuskegee Institute
Tycho Brahe
Typhlichthys subterraneus
Typographic hardware
Tyto alba in art

U

Ueno Park
Uinta Mountains
Ulex europaeus (illustrations)
Ulothrix
Ulster County, New York
Umbilical views
Underground mining locomotives
Underground rivers
Underwater photography
Unidentified Accipiter
Unidentified Acipenser
Unidentified Actiniaria
Unidentified Alepisauridae
Unidentified animals
Unidentified Anous
Unidentified Anura
Unidentified Apidae
Unidentified Apterygidae
Unidentified Arecaceae
Unidentified Arthropoda
Unidentified Bacillariophyta
Unidentified Bignonia
Unidentified birds
Unidentified Brachycera
Unidentified Bryophyta
Unidentified Cactaceae
Unidentified Cavia
Unidentified Cereus
Unidentified Chamaeleonidae
Unidentified Chelonioidea
Unidentified Chiroptera
Unidentified Cicadidae
Unidentified Cnidaria
Unidentified Coleoptera
Unidentified Columbidae
Unidentified Convolvulaceae
Unidentified Corydoras
Unidentified Crataegus
Unidentified Cyatheales
Unidentified Desmodium
Unidentified Diomedeidae
Unidentified Erysimum
Unidentified Euphorbia
Unidentified Formicidae
Unidentified fossils of Aves
Unidentified fungi
Unidentified Galium
Unidentified Gasterosteidae
Unidentified Gastropoda
Unidentified Holothuroidea
Unidentified Iris
Unidentified Isoptera
Unidentified Kalmia
Unidentified Laminariales
Unidentified Lanius
Unidentified Laridae
Unidentified Lepidoptera illustrations
Unidentified Lepisosteidae
Unidentified Leporidae
Unidentified Lucanidae
Unidentified Lupinus
Unidentified Macropus
Unidentified Mammillaria
Unidentified Membracidae
Unidentified monuments and memorials
Unidentified Muscomorpha
Unidentified Naja
Unidentified Nematocera
Unidentified Nymphaea
Unidentified Octopoda
Unidentified Ocypodidae
Unidentified Ophiuroidea
Unidentified Paguroidea
Unidentified Paradisaeidae
Unidentified Passeriformes
Unidentified Phaethontidae
Unidentified Phasmatodea
Unidentified Picidae
Unidentified plants
Unidentified plants (low quality)
Unidentified Porifera
Unidentified Primates
Unidentified Pteridophyta
Unidentified Salmonidae
Unidentified Sauria
Unidentified Scarabaeidae
Unidentified Sciuridae
Unidentified Scyliorhinidae
Unidentified Scyphozoa
Unidentified Siphonaptera
Unidentified Stomiidae
Unidentified Strigiformes
Unidentified Stylidium
Unidentified Sulidae
Unidentified Syngnathidae
Unidentified Tabanidae
Unidentified Tetraodontidae
Unidentified Turdidae
Unidentified Vespidae
Unidentified Vicia
Unidentified Vombatidae
Unidentified Yucca
United Engineering Society
United States Coast and Geodetic Survey
United States Department of Agriculture
United States Geological Survey
United States Life-Saving Service
United States Military Academy
United States Naval Observatory
University of California
University of Cambridge
University of Chicago
University of Chicago campus
University of Chicago faculty
University of Illinois
University of Iowa faculty
University of Liverpool
University of Liverpool,Buildings in Liverpool
University of Michigan faculty
University of Minnesota
University of Minnesota Old Campus Historic District
University of North Carolina at Chapel Hill
University of North Carolina at Chapel Hill landmarks
University of Pennsylvania
University of Pennsylvania faculty
University of Pennsylvania Museum of Archeology and Anthropology
University of Tokyo
University of Toronto buildings
University of Virginia
University of Virginia faculty
University of Wisconsin-Madison
Unloading fish
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Ural River
Urals Cossacks
Uralsk
Uranoscopus
Urban planning
Uris Library (Cornell University)
Ursa Major
Ursidae
Ursus americanus cinnamomum
Ursus maritimus
US Census 1890
US Weather Bureau buildings
Utricularia
Utricularia vulgaris
Uxmal

V

Vaccinations
Vaccinium reticulatum
Vacuum flasks
Vacuum forming
Vacuum tubes
Valle de Santiago, Guanajuato
Vallisneria spiralis
Vampyrum spectrum
Vancouver Island
Vanilla planifolia
Variable stars
Vector version available
Vegetables
Veil Nebula
Velocity
Venezuela in the 19th century
Ventura County, California
Venus (atmosphere)
Venus (planet)
Verde River, Arizona
Vernacular architecture of Switzerland
Vespertilionidae
Vestigiality
Vicia amphicarpa
Vicia sepium
Victoria Falls
Vineyards in the United States
Viola canina
Viola hirta
Viola pedata
Violins
Viper anatomy
Viperidae heads
Virginia City, Nevada
Vishnu Group
Vision
Visual impairment
Vivisections
Volcanic ash
Volcanic landforms
Volcanic rocks
Volcanoes
Volcanoes of Europe
Volcanoes of Italy
Volcanoes of Japan
Volcanoes of Samoa
Volcanoes of the Pacific Ocean
Volcanological diagrams
Volume
Vombatidae anatomy
Vulpini heads

W

Walking-beam engines
Wall clocks
Walter Bagehot
Walter Baker & Company
Wampum
Wandering Jew
Warblers of North America (Chapman, 1907)
Warfare of the Modern era
Warhorses
Washington and Lee University
Washington University in St. Louis
Washington University in St. Louis faculty
Washington, D.C. in the 1790s
Washington, D.C. in the 1900s
Wasps
Watchworks
Water erosion
Water management
Water pumps
Water supply
Water turbines
Water waves (physics)
Water wells
Waterfalls in the United States
Waterfalls of New Zealand
Waulking machines
Wave dispersion
Wave mechanics
Waves
Way of life in ancient China
Weather kites
Weather maps
Weather maps of the United States
Weather prediction charts
Weather stations in the United States
Weathering
Weavers
Weaving
Weaving in art
Weaving sheds
Welding
Welding equipment
Werner von Siemens
Wesleyan University alumni
Wesleyan University faculty
West Point (locomotive)
Westfield, Massachusetts
Whale bone
Whales in art
Wheat
Wheatstone stereoscopes
Wheatstone's bridge
Wheels
Whirling dervishes
Whirlpool Galaxy
Whistles
White light
White Pass and Yukon Route
Wilbur Olin Atwater
Wild Duck Cluster
Wildfires in the United States
Wilfred Stokes
Wilhelm His
Wilhelm Ostwald
Wilhelm von Humboldt
William Barton Rogers
William Bartram
William Crookes
William Dwight Whitney
William Edmond Logan
William Gilbert
William Graham Sumner
William Harvey
William Healey Dall
William Henry Brewer
William Henry Flower
William Huggins
William James (psychologist)
William John Macquorn Rankine
William Keith Brooks
William Kingdon Clifford
William Osler
William Rainey Harper
William Ramsay
William Robert Grove
William Samuel Henson
William Spottiswoode
William Stanley Jevons
William Thomson, 1st Baron Kelvin
Wind
Wind diagrams
Wind erosion
Wind roses
Windmill plans
Windows
Winter
Winton vehicles
Wireless communications
Wireless telegraphy
Women
Women at work
Women of Japan
Wood
Wood decay
Woodpiles
Woods Hole, Massachusetts
Wool
Wool fibers
Woollen mills
Workers
World Columbian Exposition
World records
World War I camouflage
World War I in publications
Worms
Writers from the United States
Writing symbols
Wyoming

X

Xerophylleae
Xiphias gladius
X-ray equipment
X-rays
X-rays of fractures of upper extremities

Y

Yale University
Yeast
Yellowstone Falls
Yellowstone geologic features
Yellowstone Lake
Yellowstone National Park
Yerkes Observatory
Yörük
Young fish
Ystad Municipality
Yuan Shikai
Yucca
Yucca aloifolia
Yucca filamentosa
Yucca gloriosa
Yucca guatemalensis

Z

Zaops ostreum
Zea mays
Zebras
Zeebrugge Raid
Zhenjiang
Ziggeraut in Borsippa
Zoologists
Zoologists from Denmark
Zoologists from Germany
Zoologists from Scotland
Zoologists from the United Kingdom
Zoologists from the United States
Zoology in Japan
Zoology museum (Naples)
Zoos in art
Zootomy
Zulu
Zuni