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Moggridge, J. T. in author 
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DCP-LETT-8977

From:
John Traherne Moggridge
To:
Charles Robert Darwin
Date:
12 July 1873
Source of text:
DAR 171: 218
Summary:

Sends his paper on Ophrys insectifera, translated into German by H. G. Reichenbach [Abh. Kais. Leopold.-Carol. Dtsch. Akad. Naturforsch. 33 (1870) no. 3], which shows the intermediates between O. aranifera and O. apifera. He has since gathered information on variation in Ophrys.

Contributor:
Darwin Correspondence Project

DCP-LETT-8984

From:
John Traherne Moggridge
To:
Charles Robert Darwin
Date:
22 July 1873
Source of text:
DAR 171: 219
Summary:

He will repeat the experiments in which CD found that formic acid vapour killed seeds [see 8866]. John Lindley describes effects of other acids on germination.

He has tabulated the large amount of variation in English Ophrys apifera.

Contributor:
Darwin Correspondence Project

DCP-LETT-8986

From:
John Traherne Moggridge
To:
Charles Robert Darwin
Date:
24 July 1873
Source of text:
DAR 171: 220
Summary:

CD has clarified the way to conduct the formic acid experiment.

Contributor:
Darwin Correspondence Project

DCP-LETT-8990

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
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