1904. THE EFFECT OF ALTITUDE ON BIRD MIGRATION. Auk 21: 338-341
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1905. ROUTES OF BIRD MIGRATION. Auk 22: 1-11.
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1905. THE WINTER RANGES OF THE WARBLERS (MNIOTILTIDAE). Auk 22: 296-299.
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1906. DISTRIBUTION AND MIGRATION OF NORTH AMERICAN DUCKS, GEESE, AND SWANS. U. S. Dept. Agr., Bur. Biol. Survey Bull. 26, 90 pp.
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1908. AVERAGING MIGRATION DATES. Auk 25: 485-486.
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