LECTURES 



ON THE 



DARWINIAN THEORY 



DELIVERED BY THE LATE 



ARTHUR MILNES MARSHALL, 



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



PROFESSOR OF ZOOLOGY IN" OWENS COLLEGE ; 

 FORMERLY FELLOW OF ST. JOHN'S COLLEGE, CAMBRIDGE. 



EDITED BY 



C. F. MARSHALL 



M.D., B.SC, F.R.CS. 



WITH 37 ILLUSTRATIONS 



MOSTLY FROM ORIGINAL DRAWINGS AND PHOTOGRAPHS 



NEW YORK 



MACMILLAN AND CO. 



LONDON: D. NUTT 



1894 



