

THE OYSTER 



A POPULAR SUMMARY OF A SCIENTIFIC STUDY 



BY 



WILLIAM K. BROOKS, PH.D., LL. D. s 



\A-/^^-^ 



Henry Walters Professor of Zoology, in the Johns Hopkins University^/-/ 



SECOND AND REVISED EDITION 



B ALTIMOBE 



THE JOHNS HOPKINS PRESS 



1905 



