THE NEW ILLUSTRATED NATURALIST 



n 



AMERICAN 



BY 



R. TUCKER ABBOTT, M.S. 



Pilsbry Chair of Malacology 

 Academy of Natural Sciences of Philadelphia 



WITH PHOTOGRAPHS BY 



FREDERICK Al. BAYER, B.S. 



United States National Museum 

 Smithsonian Institution 



D. VAN NOSTRAND COMPANY, INC. 



TORONTO NEW YORK LONDON 



