} 
QUARTERLY JOURNAL 
MICROSCOPICAL SCIENCE: 
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. 
WITH THE CO-OPERATION OF 
ADAM SEDGWICK, M.A., F.RS., 
Fellow and Lecturer of Trinity College, Cambridge ; 
AND 
W. F. R. WELDON, M.A., F.R.S., 
Jodrell Professor of Zoology and Comparative Anatomy in University College, London; 
Fellow of St. John’s College, Cambridge. 
VOLUME 36.—NeEw Serizs. 
With Rithographic Plates and Engrabings on Wood, 
LONDON: 
J. & A. CHURCHILL, 11, NEW BURLINGTON STREET, 
"1894, 
