Journal 



OF THE 



Royal 

 Microscopical Society; 



CONTAINING ITS TRANSACTIONS AND PROCEEDINGS, 



AND A SUMMARY OF CURRENT RESEARCHES RELATING TO 



ZOOLOG-Y ^.ISTID BOTANY 



(principally Invertebrata and Cryptogamia), 



MICROSCOPY, Szc. 



JRK 



Edited by TANICAJU 



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



One of the Secretaries of the Society 

 and a Vice-President and Treasurer of the Linnean 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. Thomas's Hospital, Prof essor of Comparative Anatomy in King's College, 



JOHN MAYALL, Jun., F.Z.S., R G. HEBB, M.A., M.D. (Cantab.), 



AND 



J. ARTHUR THOMSON, MA., 



Lecturer on Zoology in the School o_f Medicine, Edinburgh, 

 FELLOWS OF THE SOCIETY. 



Ser. II.— VOL. VI. PART 2. 



PUBLISHED FOR THE SOCIETY BY 



WILLIAMS & NORGATE, 



LONDON AND EDINBURGH. 

 18 86. 



