

j?iil V'-- r'.'i'^ -V; -T? -Iir'^-- * 



''i^''^^< 



XLII. 



SIREN LACERTINA. SPINAL CORD. 



TRANSVERSE SECTION THOUGH THE CERVICAL REGION. 

 Gelat'me Negative No. 1S7. Miller Bros. 1-2 Inch. 



