From Embryology

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Fig. 127. Section through the brain and olfactory organ of an embryo of scyllium

scyllium = Shark


  • ch. cerebral hemispheres
  • ol.v. olfactory vesicle
  • off. olfactory pit
  • Sch. Schneiderian folds
  • I. olfactory nerve (the reference line has been accidentally carried through the nerve so as to appear to indicate the brain)
  • pn. anterior prolongation of pineal gland.


Foster, M., Balfour, F. M., Sedgwick, A., & Heape, W. (1883). The Elements of Embryology. (2nd ed.). London: Macmillan and Co.

Volume 1 - The History of the Chick: Egg structure and incubation beginning | Summary whole incubation | First day | Second day - first half | Second day - second half | Third day | Fourth day | Fifth day | Sixth day to incubation end | Figures 1
Volume 2 - The History of the Mammalian Embryo: General Development | Embryonic Membranes and Yolk-Sac | Organs from Epiblast | Organs from Mesoblast | Alimentary Canal | Appendix | Figures 2

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