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To John Bush   29 February [1868]

Summary

Writes at Frank Buckland’s suggestion. Can JB provide any information on the proportion of sexes in rats?

Do male rats fight for the possession of the female? Are they polygamous?

Author:  Charles Robert Darwin
Addressee:  John Bush
Date:  29 Feb [1868]
Classmark:  Private collection
Letter no:  DCP-LETT-5961

To John Bush   2 April [1868]

Summary

Thanks JB for his information. Has heard of analogous cases to JB’s observations on [colours of] crossed rats; the offspring of white and grey mice are stated to be either white or grey and never piebald.

Author:  Charles Robert Darwin
Addressee:  John Bush
Date:  2 Apr [1868]
Classmark:  Private collection
Letter no:  DCP-LETT-6084
Document type
letter (2)
Author
Addressee
Bush, John[X]
Correspondent
Bush, John[X]
Darwin, C. R.[X]
Date
1868 (2)
letter