1/^ / /ia/. ( ^.L^^. 



New Series, No. LXXXIV. 



OCTOBER, 1881. 



THE 



Price 7s. 6d. 



QUARTERLY JOURNAL 



OF 



MICROSCOPICAL SCIENCE. 



SDITBD BY 



E. RAY LANKESTER, M.A., F.R.S., E.L.S., 



Fellow of Exeter College, Oxford, and Professor of Zoology and Comparative Anatomy in Uitiversily 



College, London ; 



WITH THE CO-OPKKATION OP 



F. M. BALFOUR, L.L.D., F.R.S., F.L.S., 



Fellow and Lecturer of Trinity College,' Cambridge. 



W. T. THISELTON DYER, MA., F.R.S., F.L.S. 



Assistant Director of the Royal Gardens, Kew. 



AND 



E. KLEIN, M.D., F.R.S., 



Lecturer on Histology in St. Bartholomeiv's Hospital Medical School, London. 

 WITH LITHOGRAPHIC PLATES AND ENGRAVINGS ON WOOD. 



LONDON: 

 J. & A. CHURCHILL, NEW BURLINGTON STREET. 



MDCCCLXXXI. 



J. £. Adlard.j 



[Bartlioloniew Close. 



