![Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. oV o^. -V)is''e'Hce- Fig. 30. Fig. 31. a Fig. 30. Brain of embryo of Squalus acanthias 68 mm long. X about 10. Fig. 31. Dorsal Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. oV o^. -V)is''e'Hce- Fig. 30. Fig. 31. a Fig. 30. Brain of embryo of Squalus acanthias 68 mm long. X about 10. Fig. 31. Dorsal](https://c8.alamy.com/comp/RN8N7M/anatomischer-anzeiger-anatomy-comparative-anatomy-comparative-ov-o-visehce-fig-30-fig-31-a-fig-30-brain-of-embryo-of-squalus-acanthias-68-mm-long-x-about-10-fig-31-dorsal-view-of-the-brain-of-squalus-acanthias-fn-the-pup-stage-150-mm-long-x-about-5-men-and-is-about-the-size-reached-in-squalus-before-being-freed-from-the-oviduct-of-the-mother-in-connection-with-the-development-of-the-hemispheres-of-the-prosencephalon-a-median-furrow-has-been-formed-within-which-the-roots-and-distal-portion-of-the-new-nerve-have-become-included-the-roots-penetrate-the-brain-wa-RN8N7M.jpg)
Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. oV o^. -V)is''e'Hce- Fig. 30. Fig. 31. a Fig. 30. Brain of embryo of Squalus acanthias 68 mm long. X about 10. Fig. 31. Dorsal
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The doctrine of descent and Darwinism. Evolution. TYPES AND FAMILIES. 31 arranged radially round an axis, passing through the dorsal and ventral pole. The cavity, which in most other animals—for instance,
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