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Weismann, August in addressee 
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From:
Charles Robert Darwin
To:
Leopold Friedrich August (August) Weismann
Date:
29 Feb 1872
Source of text:
DAR 148: 342
Summary:

Glad AW’s eyesight is better.

Has received AW’s essay [Einfluss der Isolierung (1872)].

Glad he is turning attention to sexual selection. Hardly any naturalists agree with CD on subject.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Leopold Friedrich August (August) Weismann
Date:
5 Apr 1872
Source of text:
DAR 148: 343
Summary:

Comments on AW’s work [Einfluss der Isolierung (1872)].

Discusses formation of local races.

Conchologist should investigate whether species of same genus vary during successive geological periods.

Comments on Franz Hilgendorf ["Über Planorbis multiformis", Monatsber. K. Preuss. Akad. Wiss. Berlin (1866): 474–504].

Believes sexual selection will be judged a powerful agency.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Leopold Friedrich August (August) Weismann
Date:
1 and 4 May 1875
Source of text:
DAR 148: 344
Summary:

Comments on AW’s work [Studien zur Descendenz-Theorie, vol. 1 (1875)].

On seasonal dimorphism in Lepidoptera in relation to sexual selection.

Discusses evolutionary reversion.

Comments on birds’ avoiding brightly coloured caterpillars. Offers references on subject.

Alpheus Hyatt says Franz Hilgendorf mistaken [about Planorbis multiformis].

Quotes from letter from J. J. Weir on birds’ rejection of brightly-coloured caterpillars.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Leopold Friedrich August (August) Weismann
Date:
6 Dec 1875
Source of text:
DAR 148: 345
Summary:

Comments on AW’s essay [on "Axolotl", Z. Wiss. Zool. 25 (suppl.) (1875): 297–342] with respect to evolutionary reversion. Peloric flowers must also be considered reversion.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Leopold Friedrich August (August) Weismann
Date:
[17 June 1876 or later]
Source of text:
DAR 148: 346
Summary:

Comments on Weismann’s remarks on the possibility of sexual selection in the genus Daphnia.

A. R. Wallace has published paper giving up sexual selection [Review of St George Jackson Mivart’s Lessons from nature, as manifested in mind and matter.] in Academy, 10 and 17 June 1876, pp. 587–8.]

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Leopold Friedrich August (August) Weismann
Date:
13 Nov 1876
Source of text:
DAR 148: 347
Summary:

Thanks for present of Studien [zur Descendenz-Theorie, vol. 2 (1876)].

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Leopold Friedrich August (August) Weismann
Date:
12 Jan 1877
Source of text:
DAR 148: 348
Summary:

Comments on AW’s book [Studien zur Descendenz-Theorie (1875–6)], especially on mimicry in caterpillars.

Mentions sets of drawings of British Lepidoptera in all stages. Would AW like to see them?

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Leopold Friedrich August (August) Weismann
Date:
17 Feb 1877
Source of text:
DAR 148: 349
Summary:

Negotiations for loan of drawings [of Lepidoptera] have failed.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Leopold Friedrich August (August) Weismann
Date:
10 Nov 1879
Source of text:
Shrewsbury School, Taylor Library
Summary:

Thanks for AW’s work ["Zur Naturgeschichte der Daphniden", Z. Wiss. Zool. 27: 51–112; 28: 93–254; 30 (suppl.): 123–65; 33: 55–270]. CD always interested in adaptations which appear to owe their structure to other causes.

Has not heard from Raphael Meldola for a long time about translation of AW’s Studien.

Contributor:
Darwin Correspondence Project