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From:
Francis Darwin
To:
Charles Robert Darwin
Date:
[29 June] 1878
Source of text:
DAR 209.14: 181
Summary:

Sleep of Porlieria hygrometrica seems independent of light.

Will have lots of time for oats. W. F. P. Pfeffer’s point is that there is no growth in sleepers with joints. A. F. Batalin says there is a slight growth.

[Dated Saturday 28th by FD.]

Contributor:
Darwin Correspondence Project
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From:
William Henry Dallinger
To:
Charles Robert Darwin
Date:
29 June 1878
Source of text:
DAR 162: 34
Summary:

The results of WHD’s long series of investigations of effects of steadily and slowly altered environment on putrefactive organisms "palpably demonstrate [CD’s] great doctrine".

Contributor:
Darwin Correspondence Project