The 



Natural History 

 of Animals 



The Animal Life of the World in its various 

 Aspects and Relations 



BY 

 J. R. AINSWORTH DAVIS, M.A. 



TRINITY COLLEGE, CAMBRIDGE 



PROFESSOR IN THE UNIVERSITY OF WALES, AND PROFESSOR OF ZOOLOGY AND 

 GEOLOGY IN UNIVERSITY COLLEGE, ABERYSTWYTH 



HALF-VOL. IV 



LONDON 



THE GRESHAM PUBLISHING COMPANY 



34 SOUTHAMPTON STREET, STRAND 



1903 



