







s';^^> 





'*■'■. 





TW- 



0r' 





•SI-x 







•»rf 



"'^U^^f' 



LXXVIII. 



EMYS FLORIDANA. 



GANGLION IN THE "ROOF" OF THE OPTIC LOBES. 



TRANSVERSE VERTICAL SECTION. 



Gelatine Negative No. 56. Gnmmv 4- 10 Inch. 



