The Journal is issued on the third Wednesday in 
February, April, June, August, October, and December. 
1893. Part 2. 
APRIL. 
To Non-Fellows, 
Price 6s. 
Journal 
may 12 1893 
OF THE 
^ Royal 
Microscopical Society 
CONTAINING ITS TRANSACTIONS AND PROCEEDINGS, 
AND A SUMMARY OF CURRENT RESEARCHES RELATING TO 
ZOOLO G-^2” -A- 1ST 3D BOTANY 
(principally Invertebrata and Cryptogamia), 
MICROSCOPY, <Scc- 
Edited by 
F. JEFFREY BELL, M.A., 
One of the Secretaries of the Society 
and Professor of Comparative Anatomy and Zoology in Kings College ; 
WITH THE ASSISTANCE OF THE PUBLICATION COMMITTEE AND 
J. ARTHUR THOMSON, M.A., 
Lecturer on Zoology in the School of Medicine, 
Edinburgh, 
A. W. BENNETT, M.A., B.Sc., F.L.S.. 
Lecturer on Botany at St. Thomas' s Hospital, 
R. G. HEBB, M.A., M.D. ( Cantab .), and 
FELLOWS OF THE SOCIETY. 
LONDON: 
TO BE OBTAINED AT THE SOCIETY’S ROOMS, 
20 HANOVER SQUARE, W. ; 
0F Messrs. WILLIAMS & NORGATE; and of Messrs. DULAU & CO. ^ 
^ r n — ■ ■ 1 ^ 
PRINTED BY WM. CLOWES AND SONS, LIMITED] 
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