C ASSELL'S 



NATURAL HISTORY 



EDITED BY 



P. MARTIN DUNCAN, M.B. (LOND.), F.R.S., F.G.S. 



PROFESSOR OF GEOLOGY IN AND HONORARY FELLOW OF KING'S COLLEGE, LONDON J 

 CORRESPONDENT OF THE ACADEMY OF NATURAL SCIENCES, PHILADELPHIA 



VOL. V 



ILL USTRA TED 



CASSELL AND COMPANY, LIMITED 



LONDON, PARIS & MELBOURNE 



1895 



ALL RIGHTS RESERVED 



