From Hermann Müller 5 July 1878
Summary
Reports results of crosses between the two forms of Viola tricolor: 1. Female small flower crossed with male large flower yields all small flowers (cleistogamous self-fertilisation suspected); 2. Male small flower crossed with female large yields intermediate flowers; 3. Large flower crossed with large flower yields self-sterility symptoms.
Author: | Heinrich Ludwig Hermann (Hermann) Müller |
Addressee: | Charles Robert Darwin |
Date: | 5 July 1878 |
Classmark: | DAR 171: 310 |
Letter no: | DCP-LETT-11592 |
From Hermann Müller 25 September 1878
Summary
Thanks CD for his efforts to get HM’s book, Die Befruchtung der Blumen [1873], translated into English. [See Fertilisation of flowers, translated by D’Arcy W. Thompson, preface by C. Darwin (1883).]
Will soon return to his observations on insects in general and bees in particular.
Author: | Heinrich Ludwig Hermann (Hermann) Müller |
Addressee: | Charles Robert Darwin |
Date: | 25 Sept 1878 |
Classmark: | DAR 171: 311 |
Letter no: | DCP-LETT-11710 |