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DCP-LETT-13669

From:
William Horsfall
To:
Charles Robert Darwin
Date:
7 Feb 1882
Source of text:
DAR 145: 359
Summary:

Asks about significance of trilobites for evolution.

Asks if any organism can be designated as animal in one stage and vegetable in another.

Contributor:
Darwin Correspondence Project

DCP-LETT-13670

From:
Charles Robert Darwin
To:
William Horsfall
Date:
8 Feb 1882
Source of text:
English Heritage, Down House (Scrapbook)
Summary:

Does not feel that the occurrence of perfect trilobites in the oldest known fossil-bearing rocks is fatal to evolution, as he does not believe these rocks to be contemporaneous with the first appearance of life.

Locomotive spores of some algae are like animals.

Contributor:
Darwin Correspondence Project
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