Presented as Thesis (Ph. D.)--University of Wisconsin--Madison, 1917. / Cover title. Reprinted from Journal of agricultural research, vol. XII, no. 4 (28 Jan. 1918). Includes bibliographical references (p. 227-230).
Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/609164835 |
Date | January 1918 |
Creators | Hills, Thomas Lawrence, |
Publisher | Washington : G.P.O., |
Source Sets | OCLC |
Language | English |
Detected Language | English |
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