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Map, zoological geographical of North America from the 4th Province, 3rd E.S. A.C.U. Checklist
Marbled Godwit nest and eggs
Marbled Godwit nest and eggs
Margaret and Jack Wentling, portrait
Margaret Wulling and Sam Graham in a canoe in the Mississippi River at the point where the river leaves the lake
Marguerite holding specimen of Greater Solomons Seal
Marjorie Seybold
Marsh Hawk adult at nest, side view
Marsh Hawk, chart showing kinds and weights of food
Marsh Hawk, chart showing number of captures and transfers