. Economic entomology for the farmer and fruit-grower [microform] : and for use as a text-book in agricultural schools and colleges . The McGowen nozzle and a section through its tip to show working parts.

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Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphila, bookyear1896