1896 



New Series, No. 154 (Vol. 39, Part 2). 



AUaiJST, 1896. 



THE 



Price 10s. 



7^"7 



QUARTERLY JOURNAL 



OF 



MICROSCOPICAL SCIENCE. 



EDITED KY 



E. RAY LANKESTER, M.A., LL.D., F.R.S., 



Linacre Professor of Comparali've Jriatojny, Felloiu of Merlon College, and Honorary Felloiu 



of Exeter College, Oxford ; Corresponding Member of the Imperial Academy of Sciences 



of St. Petersburg, and of the j^cademy of Sciences of Philadelphia ; Foreign 



Member of the Royal Bohemian Society of Sciences. 



WITH THE CO-OPEKA.TION OF 



ADAM SEDGWICK, M.A., F.R.S., 



Felloiu and Lecturer of trinity College, Cambridge; 

 AND 



W. F. R. WELDON, M.A., F.R.S., 



jfodrell Profetsor of Zoology and Comparati-je Anatomy in Uni-versity College, London; 

 late Felloiu of St. John's College, Cambridge. 



WITH LITHOGRAPHIC PLATES AND ENGRAVINGS ON WOOD. 



LONDON: 

 J. & A. CHURCHILL, 7, GREAT MARLBOROUGH STREET. 



1896. 



Adlard and Son,] 



[Bartholomew Close. 



