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Thiselton-Dyer, W. T. in addressee 
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From:
Charles Robert Darwin
To:
William Turner Thiselton-Dyer
Date:
15 Jan 1880
Source of text:
Royal Botanic Gardens, Kew (Darwin: Letters to Thiselton-Dyer, 1873–81: ff. 199–200)
Summary:

Thanks for cotton seeds.

Germination of Megarrhiza.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Turner Thiselton-Dyer
Date:
18 Jan [1880]
Source of text:
Royal Botanic Gardens, Kew (Darwin: Letters to Thiselton-Dyer, 1873–81: ff. 201–2)
Summary:

Suspects WTT-D is the author of a good review of Erasmus Darwin in Nature [21 (1880): 245–7].

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Turner Thiselton-Dyer
Date:
27 Jan [1880]
Source of text:
Royal Botanic Gardens, Kew (Darwin: Letters to Thiselton-Dyer, 1873–81: ff. 203–4)
Summary:

Asa Gray wants seeds of a variety of cotton known as vine cotton.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Turner Thiselton-Dyer
Date:
15 Apr 1880
Source of text:
Royal Botanic Gardens, Kew (Darwin: Letters to Thiselton-Dyer, 1873–81: ff. 205–6)
Summary:

Wants Ipomoea seeds for observing germination.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Turner Thiselton-Dyer
Date:
23 Nov [1880]
Source of text:
Royal Botanic Gardens, Kew (Darwin: Letters to Thiselton-Dyer, 1873–81: ff. 209–11)
Summary:

WTT-D’s suggestion about absorbent function of pegs in Abronia suggests origin of pegs in Welwitschia, which deeply interests CD. Previously could not see how pegs became large enough to be of mechanical use. Now thinks tissue between hypocotyl and radicle absorbs fluid, which would favour rise of peg to expose larger surface.

Rejects German contempt for investigating use of organs.

Asks WTT-D to observe how worms draw Robinia leaves into burrows.

Contributor:
Darwin Correspondence Project