00615cam a2200181 4500 243222746 TxAuBib 20010725120000.0 701217s1957||||||||||||||||||||||||eng|u TxAuBib Johnstone, Kathleen (Yerger). Sea treasure [BOOK] : a guide to shell collecting / Illustrated by Rudolf Freund and René Martin. Boston : Houghton Mifflin, 1957. 242 p : illus ; 22 cm. Includes bibliographies. 20010725. Mollusks.