^i^/^^ 



C.^^:^ M^^^^^:^>^^-^ , 



■ V ^ ''I <eL 



^ 





MICROSCOPIC STUDIES 



Central Nervous System 



THE SPINAL CORD OF THE FROG— RANA 

 PIPIENS, RANA HALECINA/ 



By John J. Mason, M. D. 



CHICAGO: 



J. J. Spalding & Co., Pbinteks, 158 Claek St.'' 



1880. 



