CASSELL/S NATURAL 



HISTORY By F. Martin 



Duncan, F.R.P.S., F.R.M.S., Member of 

 the Marine Biological Association of the United 

 Kingdom, Author of " Denizens of the Deep," etc. 



WITH 16 COLOUR PLATES AND MORE THAN 



200 ILLUSTRATIONS FROM PHOTOGRAPHS BY 



THE AUTHOR 



GASSELL AND COMPANY, LIMITED 

 LONDON, NEW YORK, TORONTO AND MELBOURNE 



1913 



