QUARTERLY JOURNAL 



MICROSCOPICAL SCIENCE : 



EDITED BY 



E. RAY LANKESTER, M.A., F.R.S., F.L.S., 



Felloiu of Exeter College, Oxford, and Professor of Zoology and Comparative 

 Anatomy in University College, London ; 



WITH THE CO-OPEEATION OF 



WILLIAM ARCHER, F.R.S., M.R.I.A., 



Dublin. 



F. M. BALFOUR, M.A., F.R.S., F.L.S., 



Fellow and Lecturer of Trinity College, Cambridge. 



AND 



E. KLEIN, M.D., F.R.S., 



Lecturer on Sistology in St. Bartholomew's Sospital Medical School, London. 



VOLUME XIX.— New Seeies. 

 Vii\ |Uttslralio«s on ScSoob aitb %io\\t. 



LONDON: 

 J. & A. CHURCHILL, NEW BURIJNGTON STREET. 



1879. 



