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From:
William Pole
To:
Charles Robert Darwin
Date:
3 July 1868
Source of text:
DAR 174: 56
Summary:

In Variation CD mentions colour-blindness in women. WP does not believe there are any proven cases.

Contributor:
Darwin Correspondence Project
From:
Friedrich Hermann Gustav (Friedrich) Hildebrand
To:
Charles Robert Darwin
Date:
3 July 1868
Source of text:
DAR 166: 209
Summary:

Thanks CD for mentioning his Corydalis and Primula experiments in Variation.

Has become Professor of Botany at Freiburg.

Encloses specimen of Corydalis cava.

Contributor:
Darwin Correspondence Project