File:A monograph on the development of elasmobranch fishes (1878) (14762971014).jpg

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English: Cross sections of shark embryos

Identifier: monographondevel00balf (find matches)
Title: A monograph on the development of elasmobranch fishes
Year: 1878 (1870s)
Authors: Balfour, Francis M. (Francis Maitland), 1851-1882
Subjects: Fishes -- Embryology Chondrichthyes
Publisher: London :
Contributing Library: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Digitizing Sponsor: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library

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Text Appearing Before Image:
izontal section through the hind-brainitao-e 0. shewing the roots of the vagus and glossopharyngeal nerves in at stage 0, shewin^ the brain. Zeiss B, ociil. 2 tlie brain, /jeiss i^, ucui. z,. ,.„,,, i i There appears to be one root in the brain for the glossopharyngeal,and at least six for the vagus. The fibres from the roots divide m manycases into two bundles before leaving the brain. Swellings of the braintowards the interior of the fourth ventricle are in connection with the firstfive roots of the vagus, and the glossopharyngeal i^ot; and a swelhng isalso intercalated between the first vagus root and the glossopharyngealroot. Fig. 6. Horizontal section through a part of the choroid slit at stage P. Zeiss B, OCUl. 2. i- ^ -e - / -Pr,1 \ The figure shews (1) the rudimentary processus falciformis (p. JaL)dvino- origin to the vitreous humour; and (2) the hyaloid membrane (hy. m.)which is seen to adhere to the retina, and not to the vitreous humour orprocessus falciformis. XV PI XVII
Text Appearing After Image:
■J^Baiaay ■),! EXPLANATION OF PLATE XVIL Complete list of reference letters. Nervous System. sy. g. sjTiipathetic ganglion. sp. n. spinal nerve. p r. posterior root of spinal nerve. a r. anterior root of spinal nerve. 71. c. neural canal. Alimei^tary Canal.al. alimentary canal. iitn. c. umbilical canal.hp. d. ductus choledochus. clu. duodenum. ji?a?i. pancreas.sp. V. intestine with rudiment of spiral valve. s. oes. solid oesophagus.al. V. caudal vesicle of the postanal gut. cl. al. cloacal section of ali-mentary canal. Gexeral.mp. muscle-plate. mp.l. muscle-plate sending a prolongation into the limb.s t. segmental tube. s d. segmental duct. ca. v. cardinal vein.V. cau. caudal vein. ao. dorsal aorta. aur. auricle of heart.ch. notochord. p o. primitive ovum. ir. interrenal body.j9/?. body-cavity. ep.p>p. epithelial lining of the body-cavity.me. mesentery. t. s. tail swelling. x. subnotochordal rod. Fig. 1. Transverse section through the anterior abdominal region ofan embryo of a

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https://www.flickr.com/photos/internetarchivebookimages/14762971014/

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Flickr tags
InfoField
  • bookid:monographondevel00balf
  • bookyear:1878
  • bookdecade:1870
  • bookcentury:1800
  • bookauthor:Balfour__Francis_M___Francis_Maitland___1851_1882
  • booksubject:Fishes____Embryology
  • booksubject:Chondrichthyes
  • bookpublisher:London__
  • bookcontributor:Harvard_University__Museum_of_Comparative_Zoology__Ernst_Mayr_Library
  • booksponsor:Harvard_University__Museum_of_Comparative_Zoology__Ernst_Mayr_Library
  • bookleafnumber:371
  • bookcollection:biodiversity
  • bookcollection:Harvard_University
  • bookcollection:americana
  • BHL Collection
  • BHL Consortium
Flickr posted date
InfoField
28 July 2014


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