State Library of Pennsylvania - Pennsylvania Conservation and Science

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Items related to the care, management and supervision of natural resources in order to preserve and protect them through prudent management. General and specific topical texts in the natural and industrial sciences, such as paleontology and engineering.
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Description of types of principal American varieties of tomatoes.
Tomatoes -- Varieties -- United States, Agriculture -- Pennsylvania.
Department of Agriculture bulletin on the growing and types of tomatoes. Miscellaneous publication (United States Department of Agriculture) no. 160. Prepared jointly by specialists of the United States Department of Agriculture and of the Agricultural Experiment Stations of California, Indiana, Michigan, New York (Cornell), and Texas.
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