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BIBLIOGRAPHIC INDEX OF AMERICAN ORDOVICIAN AND SILURIAN FOSSILS, VOL. 1 (CLASSIC REPRINT) RAY S. BASSLER
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REPORTS ON THE RESULTS OF DREDGING, UNDER THE SUPERVISION OF ALEXANDER AGASSIZ, IN THE GULF OF MEXICO (1877-78), IN THE CARIBBEAN SEA (1878-79), AND ALONG THE ATLANTIC COAST OF THE UNITED STATES (1880), VOL. 47 U. S. COAST SURVEY SREMER BLAKE
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ATTI DEL REALE ISTITUTO VENETO DI SCIENZE, LETTERE ED ARTI, DAL NOVEMBRE 1880 ALLOTTOBRE 1881, VOL. 7 (CLASSIC REPRINT) REALE ISTITUTO VENETO
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