Cocoon of Bombyx Mori Drawn in Toward the Middle

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The best silkworm cocoons “are drawn in toward the middle, or have a concavity on either side. There are white and yellow cocoons, the produce of different species of worms.”


Hazlitt Alva Cuppy PH.D., Editor Beauties and Wonders of Land and Sea (Springfield, OH: Mast, Crowell & Kirkpatrick, 1895)


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