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Marketing southern-grown sweet potatoes
The spike-horned leaf-miner, an enemy of grains and grasses
Self-fertilization and cross-fertilization in Pima cotton
1990 Farm Bill : forestry provisions side-by-side
Michigan flora : a list of the fern and seed plants growing without cultivation
The sugar-beet thrips
Single-bath hot-water and stem treatments of seed wheat for the control of loose smut
Birds of the Apache-Sitgreaves National Forest : a checklist
Original monthly record of observations at LaSalle, Illinois
Forest resources of the Douglas-fir region