FF? 
fin 
QUARTERLY JOURNAL 
OF 
MICROSCOPICAL SULENCE. 
EDITED BY 
E. RAY LANKESTER, M.A., LL.D., F.R.S., 
Linacre Professor of Comparative Anatomy, Fellow of Merton College, and Honorary 
Fellow 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. 
WITH THE CO-OPERATION OF 
ADAM SEDGWICK, M.A., F.R.S., 
Fellow and Lecturer of Trinity College, Cambridge ; 
AND 
W. F. R. WELDON, M.A., F.B.S., 
Jodrell Professor of Zoology and Comparative Anatomy in University College, London; 
late Fellow of St. John’s College, Cambridge. 
VOLUME 39.—NeEw Series. 
With Xithographic Plates and Engrabings on Wood. 
LONDON: 
J. & A. CHURCHILL, 7, GREAT MARLBOROUGH STREET. 
~ 1897, 
