THE SEAS 



OUR KNOWLEDGE OF LIFE IN THE SEA 

 AND HOW IT IS GAINED 



F. S. RUSSELL, D.S.C., D.F.C., F.R.S. 



Director of the Plymouth Laboratory of the 



Marine Biological Association : Great Barrier 



Reef Expedition, 1928-29 ; 



Wing Commander R.A.F.V.R. 



AND 



C. M. YONGE, D.Sc, F.R.S. 



Regius Professor of Zoology in the University of 



Glasgow; Leader of the Great Barrier Reef Expedition^ 



1928-29; Formerly Physiologist at the Plymouth 



Laboratory of the Marine Biological Association 



WITH 384 ILLUSTRATIONS 

 167 OF WHICH ARE IN FULL COLOUR 



FREDERICK WARNE & CO. LTD. 



LONDON AND NEW YORK 

 {All rights reserved) 



