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Start Over You searched for: Author Agriculture Dept. Remove constraint Author: Agriculture Dept. Publisher Plant Industry, Soils, and Agricultural Engineering Bureau Remove constraint Publisher: Plant Industry, Soils, and Agricultural Engineering Bureau

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187. Oak wilt; by Curtis May.

189. Century of progress in agronomy, address by Robert M. Salter, chief, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, at Centennial Convention of National Fertilizer Association, White Sulphur Springs, W. Va., June 14, 1950.

190. Growing sunflowers; [by A. P. Sievers; revised] by L. M. Pultz.