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From George Robert Crotch   2 October [1868]

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Summary

Bibliographical references on [stridulation in] Coleoptera. Finds no idea of sex has occurred to authors [i.e., they do not find the stridulating organs differing according to sex; cf. Descent 1: 378–85].

Author:  George Robert Crotch
Addressee:  Charles Robert Darwin
Date:  2 Oct [1868]
Classmark:  DAR 82: A98
Letter no:  DCP-LETT-6407

From G. R. Crotch   [after 5 October 1868]

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Summary

Note identifying insects and remarking on stridulation.

Author:  George Robert Crotch
Addressee:  Charles Robert Darwin
Date:  [after 5 Oct 1868]
Classmark:  DAR 81: 173
Letter no:  DCP-LETT-6529

From G. R. Crotch   [after 16 October 1868]

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Summary

Lists stridulating organs of various Coleoptera.

Author:  George Robert Crotch
Addressee:  Charles Robert Darwin
Date:  [after 16 Oct 1868]
Classmark:  DAR 81: 124
Letter no:  DCP-LETT-6530

From G. R. Crotch   19 [February 1871]

Summary

Thanks for presentation copy of Descent.

Mivart’s Genesis of species [1871] is poor.

Mathematical illustrations of Pangenesis at Cambridge.

Wallace’s address on Madeira not convincing ["The President’s Address", Trans. R. Entomol. Soc. Lond. (1870): xliv–lxix; A. R. Wallace, Studies scientific and social (1900) 1: 250–66].

Author:  George Robert Crotch
Addressee:  Charles Robert Darwin
Date:  19 [Feb 1871]
Classmark:  DAR 161: 273
Letter no:  DCP-LETT-7491
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letter (4)
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1868 (3)
1871 (1)
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