Presented as Thesis (Ph. D.)--University of Wisconsin--Madison, 1923. / Cover title. Reprinted from Journal of agricultural research, vol. XXVIII, no. 3 (19 Apr. 1924). Contribution from Bureau of Animal Industry (A-77). "The experimental part of the work was conducted in the Dept. of Genetics, Agricultural Experiment Station, University of Wisconsin, and at Macdonald College, St. Anne d'Bellevue, P.Q. Canada ... Pub. with the approval of the director of the Wisconsin Station as paper no. 46." "Literature cited": p. 221-224.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/608485032 |
| Date | January 1924 |
| Creators | Jull, Morley A. |
| Publisher | Washington, D.C. : G.P.O., |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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