MICROSCOPIC PREPARATIONS OF THE NERVOUS SYSTEM. 



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





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PHOTOMICROGRAPH NO. ^6. ^-^^^eX-t^^^ Y^^'*'^*-^ ■ ^/Z. «<~ /^^d 



PRINTED IN INK BY THE ARTOTYPE PROCESS FROM NEC.-i TIVES T.iKEN BY THE AUTHOR. 



