Text Online
From:
Darwin, Emma
To:
Darwin, W. D.
Date:
[c. February 1857]
Source of text:
DAR 219.1: 15
Summary:
No summary available.
Contributor:
Darwin Family Letters
Text Online
From:
Darwin, Emma
To:
Darwin, W. E.
Date:
[c. February 1857]
Source of text:
DAR 219.1: 16
Summary:
No summary available.
Contributor:
Darwin Family Letters
From:
Charles Robert Darwin
To:
John Tyndall
Date:
4 Feb [1857]
Source of text:
DAR 261.8: 2 (EH 88205940)
Summary:
CD is "as ignorant of mechanics as a pig", but glaciers have interested him greatly. Hopes to hear that JT’s experiments with ice will explain the freezing together of ice below the freezing point.
Contributor:
Darwin Correspondence Project
From:
Henry Doubleday
To:
Charles Robert Darwin
Date:
5 Feb 1857
Source of text:
DAR 162: 236
Summary:
The variations of Peronea caused A. H. Haworth and J. F. Stephens to create 30 or 40 species based on colour and markings. HD was first to be convinced these would be reduced to two.
Discusses species that closely resemble one another;
cites species that differ in variation in different localities;
in some double-brooded species the broods differ markedly in size and colour.
Encloses his list of varieties of Peronea.
Contributor:
Darwin Correspondence Project
Text Online
From:
John Evans
To:
J. S. Henslow
Date:
7 February 1857
Source of text:
Cambridge University Library MS Add. 8177: 139
Summary:
No summary available.
Contributor:
Henslow Correspondence Project
Text Online
From:
Lyon Playfair
To:
J. S. Henslow
Date:
7 February 1857
Source of text:
Cambridge University Library MS Add. 8177: 263
Summary:
No summary available.
Contributor:
Henslow Correspondence Project
From:
Alfred Christy
To:
William Bernhard Tegetmeier
Date:
11 Feb 1857
Source of text:
DAR 205.2: 219
Summary:
Sends information on the speed at which his pigeons fly various distances.
Contributor:
Darwin Correspondence Project
From:
Asa Gray
To:
Charles Robert Darwin
Date:
16 Feb 1857
Source of text:
DAR 165: 96
Summary:
Discusses the ranges of alpine species in U. S. and considers the possible migration routes of such species from Europe.
Lists those U. S. genera which he considers protean and describes the U. S. character of some genera which are protean in Europe.
Describes how he distinguishes introduced and aboriginal stocks of the same species.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
[17 Feb 1857]
Source of text:
DAR 210.6: 14
Summary:
Is glad WED is in the sixth [form]. Discusses WED’s intention to become a barrister.
Contributor:
Darwin Correspondence Project
Text Online
From:
John Evans
To:
J. S. Henslow
Date:
25 February 1857
Source of text:
Cambridge University Library MS Add. 8177: 140
Summary:
No summary available.
Contributor:
Henslow Correspondence Project
From:
Jean Aimé Victor (Victor) de Robillard
To:
Charles Robert Darwin
Date:
26 Feb 1857
Source of text:
DAR 205.3: 287
Summary:
The species of Mollusca at Mauritius are almost all different from those of surrounding islands, which confirms the belief that the islands were elevated from the ocean rather than separated from the continent by volcanic action.
Contributor:
Darwin Correspondence Project
