File:Physiology, hygiene and sanitation, an elementary textbook of physiology, with special attention given to hygiene and sanitation (1919) (14578504650).jpg

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Identifier: physiologyhygien00heiz (find matches)
Title: Physiology, hygiene and sanitation, an elementary textbook of physiology, with special attention given to hygiene and sanitation
Year: 1919 (1910s)
Authors: Heizer, W. L. (W. Lucien), b. 1880
Subjects: Physiology Hygiene Sanitation
Publisher: Louisville, Ky., C.T. Dearing Printing Co., Incorporated
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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fitting,or too tight often produce corns. The horny hands ofa working man are made so by constant friction of tools inthe hands. The epidermis is constantly be-ing worn away, and is as rapidlyrestored, by the growth of cells inthe dermis. Complexions of the skin are dueto the amount of coloring matterfound in the epidermis. The colorof different races of people is de-termined by the kind and amountof this coloring matter. The negrois dark or black for this reason. The dermis is plentifully sup-plied with nerves and blood vesselswhich end in tiny projectionscalled papillae. The epidermis fits and is closelymoulded upon these ridges. Thenerve papillae are most numerous over the parts of thebody with which one feels, as in the ends of the fingers,on the cheek, lips, and tip of the tongue. The lower layer of the skin is made up mostly of fat andconnective tissue. These twro tissues make the skintough, soft, and elastic or pliable, and form the bed forthe hairs, sebaceous and sweat glands.
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Fig-. 119.— Finger printsof the epidermis. Theyare used to identifypersons and are moreconstant and reliablethan photographs ofthe face. THE SKIN 239

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  • bookid:physiologyhygien00heiz
  • bookyear:1919
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:Heizer__W__L___W__Lucien___b__1880
  • booksubject:Physiology
  • booksubject:Hygiene
  • booksubject:Sanitation
  • bookpublisher:Louisville__Ky___C_T__Dearing_Printing_Co___Incorporated
  • bookcontributor:The_Library_of_Congress
  • booksponsor:The_Library_of_Congress
  • bookleafnumber:239
  • bookcollection:library_of_congress
  • bookcollection:americana
Flickr posted date
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28 July 2014

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current13:55, 18 September 2015Thumbnail for version as of 13:55, 18 September 2015868 × 1,308 (473 KB) (talk | contribs)== {{int:filedesc}} == {{subst:chc}} {{information |description={{en|1=<br> '''Identifier''': physiologyhygien00heiz ([https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&profile=default&fulltext=Search&search=insource%3A%2Fphysiologyhygie...

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