Land Mollusca of North America (north of Mexico)/Title Page (Volume I)

by Henry Augustus Pilsbry

THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA FOUNDED 1812 MONOGRAPHS Number 3

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LAND MOLLUSCA OF NORTH AMERICA (NORTH OF MEXICO)

By HENRY A. PILSBRY Curator of Mollusks, Academy of Natural Sciences of Philadelphia

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Printed by the George W. Carpenter Fund for the Encouragement of Original Scientific Research

PHILADELPHIA 1939

LIBRARY SCRIPPS INSTITUTION OF OCEANOGRAPHY UNIVERSITY OF CALIFORNIA LA JOLLA. CALIFORNIA Issued December 6, 1939 Printed in the United States of America EICKERSHAM PRINTING COMPANY Lancaster. Pennsylvania