New Series, No. LXX. 



Price 5s. 



APRIL, 1878. 



THE 



QUARTERLY JOURNAL 



OF 



MICROSCOPICAL SCIENCE. 



BDITBD BT 



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



Fellow of Exeter CMege, Oxford and Professor of Zoology and Comparative Anatomy in U)deersity 



College, London ; 



WITH THE CO-OPEEATION OF 



Wm. archer, F.R.S., M.R.I.A., I E. M. BALEOUR, M.A., E.L.S., 



Dublin. I Fellow and Lecturer of Trinity College, Cambridge. 



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



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

 WITH LITHOGRAPHIC PLATES AND ENGRAVINGS ON WOOD. 



LONDON: 

 J. & A. CHURCHILL, NEW BURLINGTON STREET. 



MDCCCLXXVIII. 



J. £. Adlard.] 



rBartholomew Close. 



