-iL-^S^'S*^^; 





^ ■y/'-'r^y-.^y^i^y: 



^41 



LXXIX. 



./■" 



RANA PIPIENS. 



TRANSVERSE VERTICAL SECTION THROUGH THE 



OPTIC LOBES JUST BEHIND THE THIRD PAIR OF 



CRANIAL NERVES. 



Gelatine Negative No. 66. Miller Bros. 21-2 Inch. 



