



->>. 



'-•^. 



/-?•/■ a; 



•• : .V- 







i' 



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. j6. Miller Bros, i Inch. 



