Tlie Journal is issued bn tlie second Wednesday of 

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



^^ 1889. Parts. JUNE. ['^"^viilfr 



( 



+ 4 



^ 



Journal 



OF THE 



ICROSCOPICAL SOCIETY; 



G€NTAINiNG ITS TRANSACTIONS AND PROCEEDINGS, 



AND A SUMMARY OF CUPvRENT RESEARCHES RELATING TO 



(principally Invertebrata and Cryptogamia), 



Edited by 



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



■One of the Secretaries of the Society 

 ■a'/td a Vice-President and Treasurer of the Linnean Society of London; 



WITH THS ASSISTANCE OF THE PUBLICATION COMMITTEE AND 



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



Lecturer on Botany at St. Thomas's Hospital, Prof essor of Comparative A nato?ny in King's College, 



JOHN MAYALL, Jun., F.Z.S., E. G. HEBB, M.A., M.D. {Cantab.), 



AND 



J. AETHUE THOMSON, M.A., 



L-ecturer on Zoology in the School of Medic itie, Edinburgh, 

 FELLOWS OF THE SOCIETY, 



WILLIAMS & N ORG ATE. 



LONDON AND EDINBURGH. 



)];» LONDON AND EDINBURGH. W/^ \ 



m 



^ 



< a > r^J 3 ^ 



t 



PRINTED BY WM. CLOWES AND SONS, LIMITED^] [STAMFORD STRE-ET h!WD GHABir?G CR^S« 



