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THE NEW ILLUSTRATED NATURALIST
AMERICAN
SEASHELLS
BY
R. TUCKER ABBOTT, M.S.
Pilsbry Chair of Malacology
Academy of Natural Sciences of Philadelphia
WITH PHOTOGRAPHS BY
FREDERICK M. BAYER, B.S.
United States National Museum
Smithsonian Institution
D. VAN NOSTRAND COMPANY, INC.
TORONTO
NEW YORK
LONDON
