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From:
Alfred Russel Wallace
To:
Samuel Birley ("Parallax") Rowbotham
Date:
29 July 1873
Source of text:
Anon. (1873). The challenge: its acceptance, trial, and postponement. The Zetetic and Anti-Theorist : 2 : 41-47 [p. 43]
Summary:

No summary available.

Contributor:
Alfred Russel Wallace Correspondence Project
From:
John Traherne Moggridge
To:
Charles Robert Darwin
Date:
30 July 1873
Source of text:
DAR 171: 221
Summary:

His preliminary results with formic acid show that it inhibits germination of several kinds of seed. It also inhibits growing of mildew, which he speculates may facilitate germination.

Contributor:
Darwin Correspondence Project
From:
Frank Chance
To:
Charles Robert Darwin
Date:
31 July – 7 Aug 1873
Source of text:
DAR 53.1: 2–5
Summary:

Gives some observations on ponies’ becoming white in winter;

on skin pigmentation and the effects of heat;

on the bristling of the hair in man.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
31 July [1873]
Source of text:
DAR 94: 267
Summary:

Has three common garden plants of which he needs to know correct names; will send specimens as soon as he hears JDH is back.

Contributor:
Darwin Correspondence Project