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From:
Charles Robert Darwin
To:
William Bernhard Tegetmeier
Date:
8 May [1860]
Source of text:
Yale University: Beinecke Rare Book and Manuscript Library (Yale Collection of American Literature: De Forest Family Papers (YCAL MSS 582) Box 2, folder 58, item 82
Summary:

Thanks WBT for observations on colours of newly-hatched pigeons of different breeds. Asks if breeders have noticed any differences in lengths of time eggs were incubated in different breeds.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Henry Walter Bates
Date:
9 Apr [1863]
Source of text:
Yale University: Beinecke Rare Book and Manuscript Library (GEN MSS MISC Group 1559 F-1)
Summary:

Thanks HWB for his book [Naturalist on the river Amazons]. Feels sure it will often be alluded to in other works.

Asa Gray is fascinated by the "Butterfly paper" ["Contributions to an insect fauna of the Amazon valley", Trans. Linn. Soc. Lond. 23 (1862): 495–566].

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Xaver Robert (Robert) Caspary
Date:
21 Feb [1866]
Source of text:
Yale University: Beinecke Rare Book and Manuscript Library (GEN MSS MISC Group 1559 F-2)
Summary:

Requests copy of paper read at Amsterdam Horticultural Congress, on graft-hybrids like that of Cytisus adami [see 5018].

Contributor:
Darwin Correspondence Project