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Background of work and study in public health hygiene
Early work on plant pathology and bacteriology in North
Vegetable pathologist with the United States Department
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acid Agriculture American animal appeared assistant Association Bacillus bacteria bacterial diseases bacteriology Bacterium became began believed blight botanists botany cancer cancer research cause cells College complete continued course crown gall cultures Department described discovery diseases of plants early examined Experiment Station experimental experiments fact field forms fungi further growth Idem important infection inoculated Institute interest Italy Johns Journal July knowledge known laboratory later letter March material meeting methods Michigan nature obtained organism origin parasite Pasteur peach pear physiology plant diseases plant pathology points possible potato practical prepared present produced professor published received recent relation scientific scientists sent showed Smith Society species tion tissues told trees tumors United University various vegetable virus visited Washington written wrote yellows York