c? 





JAN 9 1009 



New Series, No. 163 (Vol. 41, Part 3), 



- O ry NOVEMBER, 1898. 



Price 10s. 



7 5-2.7 



THE 



QUARTERLY JOURNAL 



OF 



MICROSCOPICAL SCIENCE. 



ED1TKI) BY 



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



Director of the Natural History Departments of the British Museum; Honorary Felloiu 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 and of the Academy dei Lincei of Rome; Honorary Member of the Neiu York 



Academy 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., 



Felloiv and Tutor of Trinity College, Cambridge; 



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



Jodrell Professor of Zoology and Comparative Anatomy in University 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 Son,] 



[Bartholomew Close. 



