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1. Rockhounding guide (id:7243460)

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2. Hardwood nursery guide (id:CAT10672242)

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3. Preparing herbarium specimens of vascular plants (id:CAT87210188)

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4. Collecting insects by airplane, with special reference to dispersal of the potato leafhopper (id:CAT87201165)

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5. Collecting insects by airplane in southern Texas (id:CAT87201257)

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6. 4-H club insect manual (id:CAT87210578)

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7. Instructions for preparing and shipping pathological specimens for diagnosis (id:5420900)