The Journal is issued on the third Wednesday of 
February, April, June, August, October, and December. 
(W 
1890. Part 5. 
OCTOBER. 
jTo Non-Fellows, 
i Price 5s 
¥• 
Journal 
OF THE 
Royal 
Microscopical Society 
CONTAINING ITS TRANSACTIONS AND PROCEEDINGS, 
AND A SUMMARY OF CURRENT RESEARCHES RELATING TO 
ZOOLOG-Y -A_ 1ST XD BOTANY 
(principally Invertebrata and Cryptogamia), 
MICROSCOPY, <3sc_ 
Edited by 
F. JEFFREY BELL, M.A., 
One of the Secretaries of the Society 
and Professor of Comparative Anatomy and Zoology in King's College ; 
WITH THE ASSISTANCE OF THE PUBLICATION COMMITTEE AND 
A. W. BENNETT, M.A., B.Sc., F.L.S., | JOHN MAYALL, Jun., F.Z.S., 
Lecturer on Botany at St. Thomas' s Hospital, ] R. G. HEBB, M.A., M.D. ( Cantab . ), 
AND 
J. ARTHUR THOMSON, M.A., 
Lecturer on Zoology in the School of Medicine, Edinburgh , 
FELLOWS OF THE SOCIETY. 
WILLIAMS & NOR GATE. 
LONDON AND EDINBURGH. 
w 
PRINTED BY WM. CLOWES AND SONS, LIMITED,] 
[STAMFORD STREET AND CHARING CROSS. 
