The Journal is issued on the second Wednesday of 

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



^^1887. Parts. OCTOBER. {"^^PrTjes."''"^^ 



Journal 



OF THE 



Royal 

 Microscopical Society; 



CONTAINING ITS TRANSACTIONS AND PROCEEDINGS, 



AND A SUMMARY OF CURRENT RESEARCHES RELATING TO 



ZOOLOG-TT -A-lsr3D BOT-A.UT'Sr 



(principally Invertebrata and Cryptogamia), 



Edited by 



PRANK CRISP, LL.B., B.A., 



One of the Secretaries of the Society 

 and a Vice-President and Treasurer of the Linnean Society oj 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., 



Leciurer on Botany at St. Thomas's Hospital, Professor q/ Comparative A natotny in King's College, 



JOHN MAYALL, Jun., F.Z.S., R. G. HEBB, M.A., M.D. {Cantab.\ 



J. ARTHUR THOMSON, M.A., 



Lecturer on Zoology in the School of Medicine, Edinburgh, 

 FELLOWS OF THE SOCIETV. 



WILLIAMS & NORGATE, 



y^]^ LONDON AND EDINBURGH, ^^ ) 



^m^ 



PRIKTBD BY T^M. CLOWES AND SONS, LIMITED.] [SrAKFORD STREET AND CKARING CROSS. 



