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Diseases and enemies of poultry. Pearson & Warren.
By: Pearson, Leonard, - Warren, Benjamin Harry,
Publication info: Harrisburg,C.M. Busch, state printer,1897
Contributed by: Smithsonian Institution Libraries
BHL Collections: Smithsonian Institution Libraries
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Diseases of poultry part 1 / by Leonard Pearson. Enemies of poultry : part 2 / by B.H. Warren.
By: Pearson, Leonard, - Warren, Benjamin Harry,
Publication info: Harrisburg, Pa. :C.M. Busch, state printer,1897.
Contributed by: Penn State University (archive.org)
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Report on the birds of Pennsylvania : with special reference to the food habits, based on over four thousand stomach examinations / by B.H. Warren.
By: Warren, Benjamin Harry,
Edition: 2d ed., rev. and augm.
Publication info: Harrisburg :E.K. Meyers, State Printer,1890.
Contributed by: Penn State University (archive.org)
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Report on the birds of Pennsylvania. With special reference to the food-habits, based on over three thousand stomach examinations. By B.H. Warren, M.D., ornithologist of the State Board of Agriculture. Illustrated with fifty plates ...
By: Pennsylvania. - Warren, Benjamin Harry,
Publication info: Harrisburg,E.K. Meyers, State Printer,1888.
Contributed by: Smithsonian Institution Libraries
BHL Collections: Smithsonian Institution Libraries
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