MICROSCOPIC PREPARATIONS OF THE NERl'OUS SYSTEM. 



BY JOHN J. MASON, M. D., NEWPORT, R. I. 



PlIOTO-MICKOGRAPII XO. 6"^/ . '^^^<Ji£e-^ /3^Hf-</ . S'/i^^^c^' /^^O - 



rRINTED /.V INK BY THE ARTOTYPE PROCESS FROM NEGA TIYES TAKEX BY THE AUTJ/OR. 



