John Warren route 
- ABBREVIATIONS. 
A. @—Anterior commissure. 
Ch. Pla.—Choroid plexus. 
Dien—Diencephalon. 
D. Plex.—Diencephalic plexus. 
E.—Epipbhysis. 
Ep. A.—Epiphysal arch. 
F. B.—Fore-brain. 
F.M.—Foramen of Munro. ° 
H.—Hemisphere. 
H. B.—Hind brain. 
Hyp.—Hypophysis. 
I. J. V—tInternal jugular vein. 
L. Pla.—Choroid plexus of lateral 
ventricle. 
L. V.—Laterai ventricle. 
M. B.—Mid-brain. 
O. C.—Optic commissure. 
Tel. Pla.—Telencephalic plexus. 
Tel.—Telencephalon. 
P. G.—Posterior commissure. 
P. V. A.—Post-velar arch. f 
P. A.—Paraphysal arch. 
P.—Parapbhysis. 
S. ¢.—Superior commissure. 
Si.—Sinusoid. 
T.—Tubule. 
Ves.—Vessel. 
V.—vVelum transversum. 
