QUARTERLY JOURNAL 
OF 
MICROSCOPICAL SCIENCE: 
EDITED BY 
E. RAY LANKESTER, M.A., LL.D., F.R.S., 
Fellow of Exeter College, Oxford, and Jodrell Professor of Zoology in University 
College, London ; 
WITH THE CO-OPEBATION OF 
E. KLEIN, M.D., F.R.S., 
Lecturer on General Anatomy and Physiology in the Medical School of 
St. Bartholomew's Hospital, London ; 
H. N. MOSELEY, M.A., LL.D., F.R.S., 
Linacre Professor of Human and Comparative Anatomy in the University of Oxford, 
AND 
ADAM SEDGWICK, M.A., F.R.S., 
Fellow and Assistant-Lecturer of Trinity College, Cambridge. 
VOLUME XXIX. — New Seeies. 
ffilUtl) <fi%grapl)it plates anb dSngrabings on ®oob. 
LONDON: 
J. & A. CHURCHILL, 11, NEW BURLINGTON STREET, 
