From Rudolph Riemann 9 July 1875
Summary
Professional sheep-breeder interested in laws of inheritance reports his crosses between Serinus hortulanus and Dryospiza canaria. Seeks to make a new species. Crosses carried out with animals varying in their proportion of Serinus and Dryospiza parentage. Confirms Prosper Lucas’ law as given in Origin, ch. 9, with exception that strong individuals exhibit prepotency.
| Author: | Rudolf Ehrenfried (Rudolf) Riemann |
| Addressee: | Charles Robert Darwin |
| Date: | 9 July 1875 |
| Classmark: | DAR 176: 157, 157/1 |
| Letter no: | DCP-LETT-10054 |
From J. J. Weir 9 July 1875
Summary
Sends CD some of the Cytisus, which has produced yellow flowers on a purple graft.
| Author: | John Jenner Weir |
| Addressee: | Charles Robert Darwin |
| Date: | 9 July 1875 |
| Classmark: | DAR 181: 87 |
| Letter no: | DCP-LETT-10055 |
Document type
| letter | (2) |
Author
| Riemann, Rudolf | (1) |
| Weir, J. J. | (1) |
Addressee
| Darwin, C. R. | (2) |
Correspondent
| Darwin, C. R. | (2) |
| Riemann, Rudolf | (1) |
| Weir, J. J. | (1) |
