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4261. Pecan scab with special reference to sources of early spring infections; by J. B. Demaree.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: [1924.]
SuDoc number:: A 1.23/a:P 331/3

4262. Peppermint. Cultivation of peppermint and spearmint; [by] Walter Van Fleet.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: [Oct. 1915, revised May, 1922, reprint] 1924
SuDoc number:: A 1.9:694/3-2

4263. Persimmons. Native persimmon; by W. F. Fletcher.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: Oct. 1915, revised Sept. 1923. [1924.]

4264. Photoperiodism in relation to hydrogen-ion concentration of cell sap and carhohydrate content of plant [with list of literature cited]; by W. W. Garner, C. W. Bacon, and H. A. Allard.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: 1924

4265. Physalospora malorum on currant; by Neil E. Stevens.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: [1924.]
SuDoc number:: A 1.23/a:C 936/4

4266. Plants. Propagation of plants; [by] L. C. Corbett.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: [July 18, 1902, reprint with changes] 1924
SuDoc number:: A 1.9:157/5-3

4267. Plasmodiophora brassicae. Relation of soil temperature and soil moisture to infection by Plasmodiophora brassicae [with list of literature cited]; by John Monteith, jr.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: [1924.]
SuDoc number:: A 1.23/a:C 627

4268. Potatoes. Control of potato-tuber diseases: [by Michael Shapovalov and George K. K. Link].

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: [Jan. 1924.]

4269. Potatoes. Studies on potato tuber [with list of literature cited]; by Ernst Artschwager.

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: 1924
SuDoc number:: A 1.23/a:P 847/66

4270. Prickly pear as stock feed: [by David Griffiths].

Corporate/Agency Authors:: Plant Industry Bureau and Agriculture Department
Publisher:: Plant Industry Bureau
Date:: [Mar. 1920, reprint 1924.]
SuDoc number:: A 1.9:1072/1-2

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