V 



'\.AoO ,\J 



FEB C5 1898 



New Series, No. 160 (Vol. 40, Part 4). 



JANTJAEY, 1898. 



^ THE 



Price 10s. 



"jszh 



QUARTERLY JOURNAL 



OP 



MICEOSCOPICAL SCIENCE. 



EDITED BY 



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



Linaere Professor of Comparati-je jinatomy, Felloiv of Merton College, and Honorary Felloiv of Exeter 



College, Oxford ; Corresponding Member of the Imperial Academy of Sciences of St. Petersburg, 



and of the Academy of Sciences of Philadelphia ; Foreign Member of the Royal 



Bohemian Society of Sciences ; Associate Member of the Biological Society of Paris; 



Fullerian Professor of Physiology in the Royal Institution of London. 



WITH THE CO-OPERATION OF 



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



Felloiv and tutor of Trinity College, Cambridge; 



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



Jodrell Profetsor of Zoology and Comparative Anatomy in Uniz/ersity College, London; 

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



WITH LITHOGEAPHIC PLATES AND ENGRAVINGS ON WOOD. 



LONDON : 



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



1898. 



Ldlard and Son,] 



[Bartholomew Close 



