

New Series, No. 161 (Vol. 41, Part 1). 



R £ / 1835 MARCH, 1898. 



Price 10 s. 



r*i 



THE 



QUARTERLY JOURNAL 



OF 



MICROSCOPICAL SCIENCE. 



EDIT F.I) BY 



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



Linacre Professor of Comparative Anatomy, Fellow 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., F.R.S., 



Fellow and Tutor of Trinity College, Cambridge; 

 AND 



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



Jodrell Professor 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. 



1898. 



Adlard and Sod,] 



[Bartholomew Close. 



