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Injurious insects of the farm and garden : With a chapter on beneficial insects / [Mary Treat].

Through a microscope : something of the science, together with many curious observations indoor and out and directions for a home-made microscope / by Samuel Wells, Mary Treat and Frederick Leroy Sargent.

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Treat, Mary, 1830-1923

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Injurious insects of the farm and garden : With a chapter on beneficial insects / [Mary Treat].

Through a microscope : something of the science, together with many curious observations indoor and out and directions for a home-made microscope / by Samuel Wells, Mary Treat and Frederick Leroy Sargent.