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Barton's Fragments of the natural history of Pennsylvania.

By Barton, Benjamin Smith,.
London [Printed by Taylor and Francis] 1883 .
5 p. l., [v]-xviii, 24 p. , At head of title: The Willughby society. | Reprint of edition of 1799, including facsimile of original t.-p. | No more published; pt. 1 treats of birds, with data regarding vegetation and miscellaneous observations. 29 cm..

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A calendar of the leafing, flowering and seeding of the common trees of the eastern United States /

By Lamb, George N..
Washington : G.P.O., 1915 .
93 p. : , Second work chiefly tables. | "W.B. no. 558." 31 cm..

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Seasonal development and yield of native plants on the upper Snake River Plains and their relation to certain climatic factors /

By Blaisdell, James Pershing,.
Washington : U.S. Dept. of Agriculture, 1958 .
iii, 68 p. : , Issued also in microfilm form, as thesis, University of Minnesota, under title: Seasonal development and yield of native plants on the upper Snake River Plains of Idaho and their relation to climatic factors, especially precipitation and temperature. 23 cm..

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