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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
Document type
letter (1)
Author
Addressee
Correspondent
Darwin, C. R.[X]
Riemann, Rudolf[X]
Date
1875 (1)
letter