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DCP-LETT-9047

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
9 Sept [1873]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-14)
Summary:

Pleased JSBS has decided to work on Drosera; sends plants. Does not know whether thermo-electric pile could detect temperature change when leaves close.

CD’s experiment with very weak hydrochloric acid repeated with success: the plants digest albumen more quickly.

Contributor:
Darwin Correspondence Project

DCP-LETT-9048

From:
Charles Robert Darwin
To:
Thomas Frederick Cheeseman
Date:
9 Sept [1873]
Source of text:
Auckland War Memorial Museum Library Tāmaki Paenga Hira (T. F. Cheeseman Papers MS-58)
Summary:

Thanks TFC for his extremely interesting paper ["On the fertilisation of the New Zealand species of Pterostyles", Trans. & Proc. N. Z. Inst. 5 (1872): 352–7]. Has no doubt his explanation [of the fertilisation mechanism] is correct. The case is analogous to that of the Cypripedium though TFC’s case is much more curious.

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Darwin Correspondence Project
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