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How to raise silk-worms

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By: Walker, Philip.

Publication info: 1890

Holding Institution: U.S. Department of Agriculture, National Agricultural Library
How to raise silk-worms. A brief manual of instructions, abridged from Bulletin 9 of the Division of Entomology

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By: Walker, Philip.

Publication info: Washington, Gov't. Print. Off, 1890

Holding Institution: Library of Congress