d 



New Series, No. 139 (Vol. 35, Part 3). Price 10s. 



JANUARY, 1894 



J6-^i 



THE 



QUARTERLY JOURNAL 



OF 



MICROSCOPICAL SCIENCE. 



EDITED BY 



• E. RAT LANKESTER, M.A., LL.D., F.R.S., 



.Linacre Professor of Comparative Anatomy, Fellow of Merton College, and 

 Honorary Fellow of Exeter College, Oxford ; 



WITH THE CO-OPEEATION OF 



ADAM SEDGWICK, M.A., F.R.S., 



Fellow and Lecturer of Trinity College, Cambridge ; 



A. MILNES MARSHALL, M.A., D.Sc., M.D., F.R.S., 



Late Fellow of St. John's Colleg e, -Cambridge ; Professer in the Victoria University ; Beyer Professor of Zoology 

 in the Owens College, Manchester. 



W. F. R. WELDON, M.A., F.R.S., 



Jodrell Professor of Zoology and Comparative Anatomy in Uuiversity College, London ; 

 Fellow of St. John's College, Cambridge. 



WITH LITHOGRAPHIC PLATES AND ENGRAVINGS ON WOOD. 



LONDON: 

 J. & A. CHURCHILL, 11, NEW BURLINGTON STREET. 



1894. 



AdUwl aad -So ?i ]- ^^ [Bartholomew Close. 



