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1860-1869::1862 in date 
Darwin, C. R. in correspondent 
Rivers, Thomas in correspondent 
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From:
Charles Robert Darwin
To:
Thomas Rivers
Date:
23 Dec [1862]
Source of text:
Sotheby’s (dealers) (23–4 July 1987)
Summary:

CD is collecting [for Variation] all accounts of what some call "sports" and what he calls "bud-variations". He asks whether very slight variations in fruit appear suddenly by buds, or whether only rather strongly marked varieties thus appear.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Thomas Rivers
Date:
28 Dec [1862]
Source of text:
Sotheby’s (dealers) (23–4 July 1987)
Summary:

Thanks for letter [missing] and help.

Asks about the effect said to be produced on the stock by a graft.

Health prevents accepting TR’s invitation.

Contributor:
Darwin Correspondence Project