v 





'-'^. 









-i*- 











^sS.^'^.f. 



'•'ffe?*j«*>5S«^'-- ■ '/ ■■•• '^^J f/> =W .-^ '-'^ 





XXXII. 



RANA PIPIENS. SPINAL CORD. 



TRANSVERSE SECTION FROM THE BRACHIAL ENLARGEMENT. 

 CENTRAL CANAL AND SUBSTANTIA RETICULARIS. 



Gelatine Negative No. 77. Miller Bros. 1-2 Inch. 



