

'. ', '^ .w r> i . ...-. ..- /v- 



' ! gj- ||Mi|*l*?3t K- ; 



; i :''.-. . ' j , _'-. . .- ."" ' ,,~!4.; ' : 



XXIX. 



RANA PIPIENS. SPINAL CORD. 



TRANSVERSE SECTION OF THE ANTERIOR DORSAL REGION, 

 SHOWING. ON EITHER SIDE, THE GROUP OF 



MIDDLE-SIZED CELLS. 

 Gelatine Negative No. 36. Miller Bros, i Inch. 



