The Journal is issued on the second Wednesday of 

 February, April, June, August, October, and December. 



^^ 



^ 



1887. Parts. 



JUNE. 



To Non-Fellows, 

 Price 6s. 



Journal 



OF THE 



Royal 

 Microscopical Society; 



CONTAINING ITS TRANSACTIONS AND PROCEEDINGS, 



AND A SUMMARY OF CURRENT RESEARCHES RELATING TO 



z o o 3L. o o- "s- -A. :isr r> BOT.A.isr'^' 



(principaUy Invertebrata and Cryptogamia), 

 ls/LXG:ROSCO:E>ir, Sec. 



Edited by 



FRANK CRISP, LL.B., B.A., 



One of the Secretaries of the Society 

 and a Vice-FresidetU and Treasurer of the Liniiean Society of London ; 



WITH THE ASSISTANCE OF THE PUBLICATION COMMITTEE AND 



A. W. BENNETT, M.A., B.Sc, F.L.S., F. JEFFREY BELL, M.A., F.Z.S., 



Lecturer on Botany at St. TJwntas' s Hospital, Professorof Comparative Anatomy in King's College, 



JOHN MAYALL, JuN., F.Z.S., E. G. HEBB, M.A., M.D. CCantai>.), 



AND 



J. ARTHUR THOMSON, M.A., 



Lecturer on Zoology in the School of Medicine, Edi?iburgh, 

 FELLOWS OF THE SOCIETY. 



WILLIAMS & NORGATE, 



LONDON AND EDINBURGH. 



PRINTED BY WM. CLOWES AND SONS, LIMITED.] 



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