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To August Weismann 29 February 1872
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.
| Author: | Charles Robert Darwin |
| Addressee: | Leopold Friedrich August (August) Weismann |
| Date: | 29 Feb 1872 |
| Classmark: | DAR 148: 342 |
| Letter no: | DCP-LETT-8228 |
To August Weismann 5 April 1872
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.
| Author: | Charles Robert Darwin |
| Addressee: | Leopold Friedrich August (August) Weismann |
| Date: | 5 Apr 1872 |
| Classmark: | DAR 148: 343 |
| Letter no: | DCP-LETT-8275 |
