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Gilbert, J. H. in addressee 
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From:
Charles Robert Darwin
To:
Joseph Henry Gilbert
Date:
11 Aug 1875
Source of text:
Rothamsted Research (GIL13)
Summary:

Apologises for keeping the tables so long [see 10090]. The results seem extremely curious.

Comments on paper by JHG and J. B. Lawes.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Joseph Henry Gilbert
Date:
16 Feb 1876
Source of text:
Rothamsted Research (GIL13)
Summary:

Describes self- and cross-fertilisation experiments.

Asks JHG’s advice on setting up an experiment designed to test whether the cause of variation in cultivated plants lies in different substances absorbed from the soil when absorption is not interfered with by other plants in a state of nature. Can JHG suggest how he can get soil free of all the substances which plants naturally absorb?

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Joseph Henry Gilbert
Date:
[before 9 Mar 1876]
Source of text:
Rothamsted Research (GIL13)
Summary:

Thanks for advice concerning preparation of soil for experiments. Will order the salts. Asks about burning soil or washing it with acid.

Thanks for invitation. His son [Francis] would like to inspect JHG’s plots.

Contributor:
Darwin Correspondence Project
From:
Francis Darwin
To:
Joseph Henry Gilbert
Date:
8 June 1876
Source of text:
Rothamsted Research (GIL13)
Summary:

Asks about constituents of burnt soil.

Contributor:
Darwin Correspondence Project