QUARTERLY JOURNAL 



MICROSCOPICAL SCIENCE 



EDITED Ur 



EDWIN LANK ESTER, M.D., F.R. S., &c., 



AND 



E. RAY LANKESTER, B.A. Oxon., F.R.M.S. 



VOLUME X — New Series. 

 itb Illustrations on SSoob snb ^lonc. 



LONDON 

 JOHN CHURCHILL AND SONS, NEW BURLINGTON STREET 



1870. 



