2 Items
Page: 1
From Asa Gray [early August 1856]
Summary
Believes intermediate varieties are generally less numerous in individuals than the two states that they connect.
Discusses the difficulties of deciding what is the typical form of a species
and gives some opinions on the variability of introduced species compared with indigenous species.
| Author: | Asa Gray |
| Addressee: | Charles Robert Darwin |
| Date: | [early Aug 1856] |
| Classmark: | DAR 165: 93 |
| Letter no: | DCP-LETT-1934 |
From Bernard Peirce Brent [after August 1856]
Summary
On his breeding of Jacobin pigeons. How reciprocal crosses to produce mules work among canaries, goldfinches, linnets, and green linnets.
Will soon forward copies of Cottage Gardener for June.
| Author: | Bernard Peirce Brent |
| Addressee: | Charles Robert Darwin |
| Date: | [after Aug 1856] |
| Classmark: | DAR 160.2: 298 |
| Letter no: | DCP-LETT-2850 |
Document type
| letter | (2) |
Author
| Brent, B. P. | (1) |
| Gray, Asa | (1) |
Correspondent
| Darwin, C. R. | (2) |
| Brent, B. P. | (1) |
| Gray, Asa | (1) |
