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Darwin, C. R. in addressee 
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From:
Ferdinand Julius Cohn
To:
Charles Robert Darwin
Date:
31 Dec 1877
Source of text:
DAR 161: 205
Summary:

Sends details of H. H. R. Koch’s work on bacteria, including first photographs.

J. S. Burdon Sanderson’s and Koch’s collaboration on systemic fever.

Thinks movement of Francis Darwin’s Dipsacus filaments is an artifact.

Contributor:
Darwin Correspondence Project
From:
Robert Lawson (Lawson) Tait
To:
Charles Robert Darwin
Date:
31 Dec [1877]
Source of text:
DAR 178: 40
Summary:

Speculation on the process by which tails have been lost; believes he has evidence from man that it is related to spina bifida.

Contributor:
Darwin Correspondence Project