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Darwin, C. R. in correspondent 
Ruck, Amy in correspondent 
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From:
Charles Robert Darwin
To:
Amy Richenda (Amy) Ruck; Amy Richenda (Amy) Darwin
Date:
24 Feb [1872]
Source of text:
DAR 185: 47
Summary:

Wants AR to make any observations she can on the occurrence of little ledges on the side of steep, turf-covered slopes. Feels they may result from the washing down of worm-castings.

Contributor:
Darwin Correspondence Project
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From:
Amy Richenda (Amy) Ruck; Amy Richenda (Amy) Darwin
To:
Charles Robert Darwin
Date:
15 Mar [1872]
Source of text:
DAR 176: 223
Summary:

Has failed to discover the signs of earthworm activity that CD described.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Amy Richenda (Amy) Ruck; Amy Richenda (Amy) Darwin
Date:
[1 Nov 1872]
Source of text:
DAR 185: 48
Summary:

Sends a copy of Expression and his autograph.

Contributor:
Darwin Correspondence Project
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From:
Francis Darwin; Amy Richenda (Amy) Ruck; Amy Richenda (Amy) Darwin
To:
Charles Robert Darwin
Date:
8 Aug [1874]
Source of text:
DAR 58.1: 139–40
Summary:

Describe the Pinguicula species found at Mürren. Have found seeds on some. Their large roots seem to indicate that they do not get much animal food.

Contributor:
Darwin Correspondence Project
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