102 



Journal of Comparative Neurology. 



35. 18S4. Wilder, B. G. The Cartwright Lectures on the methods of study- 

 ing the brain. New York Aledtcal Journal, Feb. 



36. 1884. Wilder, B. G. Do the cerebellum and oblongata represent two 

 encephalic segments or only one ? Proc. American Assoc, for Advancement 

 of Science, XXXIII, p. 523, September. 



37. 1889. Wilder, B. G. Gross anatomy of the brain. Reference Hand- 

 book of the Medical Sciences, New York, Vol. VIII. 



38. 1877. Zuckerkandl, E. Beitrag zur Morphologie des Gehirns. Zeitschr. 

 f. Anat. u. Entwicklungsgscht., Leipzig, ii, 442-450. I, PI. 



DESCRIPTION OF PLATES. 



Note. — The length for embryos is that from the top of the head to the 

 vent. The magnification of figures is given in the explanations, except for 

 Plates III and IV, where a line of given length indicates the enlargement. 



The preparation of specimens has been after the method given in the intro- 

 duction. 



Heavy black lines represent either (a) the cut edge of endyma, or {b) the 

 cut or torn edge of a tela consisting of the endyma and pia conjoined. 



The occasional disregard of the rules formulated by Wilder (Handbook, 

 IX, 120, 56) was due sometimes to inadvertence, sometimes to the condition 

 of the specimen, the right side being either more perfectly preserved or alone 

 available. 



The number of a given specimen refers to the accession number of the 

 Museum Vertebrate Zoology of Cornell University. 



Abbreviations. 



cb. — cerebrum. 



cdl. fd. — caudal fold. 



ch. pi. — choroid plexus. 



cl, — clivus. 



crnl.flx. — cranial flexure. 



est — cestus. 



cul, — culmen. 



dent. — dentatum. 



d. fd. — dorsal fold. 



Dien. — diencephal. 



dpi. — Deckplatte of His. 



Em. ail. — auditory eminence. 



epcl. — epiccele. 



Epen. — epencephal. 



epnd. — ependyma. 



vittl. — metatela. 



mylcl. — myeloccele. 



71. — nodulus. 



jtk.Jlx. — neck flexure. 



72od. s. — nodular sulcus. 



olv. — oliva. 



obi. — oblongata. 



parepcl. — parepiccele, lateral recess of 



the cerebellum. 

 paraflc. — paraflocculus. 

 paraflc. s. — parafloccular sulcus. 

 plm. — pileum. 

 pdcl. — peduncle. 

 postplin. — postpileum. 

 preplni. — prepileum. 

 P. or pn. — pons. 

 pym. — pyramis. 

 py. — pyramid. 



I 



