1881.] *^3^ [Wilder. 



Abbretiations op the Ckakial Nerves. ('See fig. 3.) 

 For convenient comparison, the numerals applied by Soemmering are 

 prefixed to the proper abbreviations, 

 vi. abd. — Abducens. 

 xi. ac. — Accessorius (spinalis). 

 viii. au. — Auditorius. (Portio mollis.) 

 vii. /. — Facialis. (Portio dura.) 

 ix. gpli. — Glossopharj'^ngeus. 

 xii. hg. — Hypoglossus. 



iii. ocm. — Oculomotorius. Motor communis, 

 i. oL — Olfactorius. 

 ii. op- — Opticus. 



iv. tr. — Trochlearis. "Patheticus." 

 V. trg. — Trigeminus. Trifacialis. 

 X. -e. — Vagus. Pneumogastricus, Par vagum. 



List of the Parts of the Cat's Brain which are Visible to the 



Unaided Eye. 



To avoid repetition, this list is accompanied by the abbreviations which 

 are used upon the plates, and, for convenience of reference, the names are 

 arranged in the alphabetical order of the abbreviations. Only the abbrevia- 

 tions of general names are capitalized. The numbers following the 

 names indicate the figures upon which the parts are shown, or, in a few 

 cases, the pages on which they are mentioned. 



Most of the names are those in common use, with the omission of super- 

 fluous elements like corpus, and the genitives of the names of more com- 

 prehensive parts. Most of the apparently new names will be found to be 

 old acquaintances under such thin disguises as translation, transposition., 

 abridgment, and the substitution of j)r6fixes for qualifying words. In a few 

 cases the old names, are wholly discarded for briefer new ones. Most of the 

 new names, however, refer to parts apparently unobserved hitherto (e. g., 

 crista, carina, delta), or to parts which — although probably observed — 

 seem not to have been regarded as needing a special designation {e. g., 

 aula, quadrans, pero). 



So much of each name as immediately follows the abbreviation, is re- 

 garded as a sufficient designation of the part under ordinary circum- 

 stances ; sometimes it may be desirable to add the words in parenthesis. 



a. — Aula. The cavity of the primitive prosencephalon, or Lobus com- 

 munis, a 13, 16. See p. 540. 



abn. — Albicans (Corpus). 3, 4, 11. 



alb.— A\h3i (Substantia). White matter. 13, 14, 20. 



apx. — Auliplexus. Not distinctly shown. See p. 542. 



arb. vt. — Arbor vitae. (cerebelli). 4. 



Ar. cr. — Area cruralis. 3, 11. 



Ar. ier. — Area iutercruralis. 3, 11. 



Ar. el. — Area elliptica. 3. 



