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Wild tobaccos (Nicotiana Trigonophylla Dunal and Nicotiana Attenuata Torrey) as stock-poisoning plants
Marsh, C. Dwight (Charles Dwight), 1855-1932.
Clawson, A. B. (Arthur Brooks), 1878-1937.
Roe, G. C.
Livestock poisoning plants.
U.S. Dept. of Agriculture
This item is authored by federal employees as part of their official duties and are therefore non-copyrightable and/or published by the federal government and now in the public domain.
Agricultural Research Service
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