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To Armand de Quatrefages   3 July [1862]


Can AdeQ verify the statement that the moths of the several races of the common silkworm are very similar?

When the female moth comes out of the cocoon, are her wings less developed than those of a male moth at the same stage?

Author:  Charles Robert Darwin
Addressee:  Jean Louis Armand (Armand de Quatrefages) Quatrefages de Bréau
Date:  3 July [1862]
Classmark:  Bibliothèque nationale de France, département des Manuscrits (Manuscripts NAF 11824 ff. 68–9)
Letter no:  DCP-LETT-3640F
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letter (1)
Quatrefages de Bréau, Armand de Quatrefages[X]