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From:
George Robert Waterhouse
To:
Charles Robert Darwin
Date:
[Apr 1844]
Source of text:
DAR 48: 79
Summary:

Regularly attends Owen’s lectures. Owen at pains to show groups are not linked. Thus makes Lepidosiren appear fish-like.

GRW thinks embryology will become chief guide to insect classification. But contradictions between classification based on embryological and adult characters do occur.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
5 Apr 1844
Source of text:
DAR 100: 12–13
Summary:

Answer to CD’s query on genera and species ranges.

Comments on typical forms.

Preparing first part of Galapagos plants for printing.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
[17 Apr 1844]
Source of text:
DAR 114: 18
Summary:

Thanks for information on printing charges

and for clarifying "typical forms".

In a few days CD will go away for six weeks.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Christian Gottfried Ehrenberg
Date:
20 Apr [1844]
Source of text:
Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 43)
Summary:

Sends samples likely to contain Infusoria and some that Hooker collected in Antarctic regions.

Contributor:
Darwin Correspondence Project
From:
George Robert Waterhouse
To:
Charles Robert Darwin
Date:
26 Apr 1844
Source of text:
DAR 181: 14
Summary:

Defines the term "typical species" and discusses its use among zoologists. Cites example of type of Carnivora. Comments on general law of development of parts in animals. Cites teeth of Carnivora.

Contributor:
Darwin Correspondence Project
From:
George Robert Waterhouse
To:
Charles Robert Darwin
Date:
[after 26 Apr 1844]
Source of text:
DAR 181: 15
Summary:

Is puzzled by CD’s question about the Viverridae; thinks if there were only one species he might regard it as an aberrant of some other group and not select it as a type of the Carnivora.

Contributor:
Darwin Correspondence Project
Text Online
From:
Michael Faraday
To:
Charles Vincent Walker
Date:
April 1844
Source of text:
RI MS
Summary:

No summary available.

Contributor:
Faraday Project
Text Online
From:
Jean Pierre Joseph D'Arcet
To:
Michael Faraday
Date:
2 April 1844
Source of text:
RI MS F1 I140
Summary:

No summary available.

Contributor:
Faraday Project
Text Online
From:
Michael Faraday
To:
Isambard Kingdom Brunel
Date:
5 April 1844
Source of text:
BrUL MS
Summary:

No summary available.

Contributor:
Faraday Project
Text Online
From:
Michael Faraday
To:
Charles Bell Ford
Date:
5 April 1844
Source of text:
Parliamentary Papers, 1846 [703] XLIII, Appendix I, p.40
Summary:

No summary available.

Contributor:
Faraday Project
Text Online
From:
Jacob Herbert
To:
Michael Faraday
Date:
6 April 1844
Source of text:
GL MS 30108/1/29
Summary:

No summary available.

Contributor:
Faraday Project
Text Online
From:
Michael Faraday
To:
Jacob Herbert
Date:
9 April 1844
Source of text:
GL MS 30108A/1, p.201
Summary:

No summary available.

Contributor:
Faraday Project
Text Online
From:
Thomas Andrews
To:
Michael Faraday
Date:
11 April 1844
Source of text:
QUB MS 2/13
Summary:

No summary available.

Contributor:
Faraday Project
Text Online
From:
Michael Faraday
To:
Christian Friedrich Schoenbein
Date:
12 April 1844
Source of text:
UB MS NS 358
Summary:

No summary available.

Contributor:
Faraday Project
Text Online
From:
Jacob Herbert
To:
Michael Faraday
Date:
18 April 1844
Source of text:
GL MS 30108/1/29
Summary:

No summary available.

Contributor:
Faraday Project
Text Online
From:
Christian Friedrich Schoenbein
To:
Michael Faraday
Date:
19 April 1844
Source of text:
UB MS NS 359
Summary:

No summary available.

Contributor:
Faraday Project
Text Online
From:
George Biddell Airy
To:
Michael Faraday
Date:
22 April 1844
Source of text:
IEE MS SC 2
Summary:

No summary available.

Contributor:
Faraday Project
Text Online
From:
Michael Faraday
To:
Jacob Herbert
Date:
25 April 1844
Source of text:
GL MS 30108/1/29
Summary:

No summary available.

Contributor:
Faraday Project
Text Online
From:
Michael Faraday
To:
Christian Peter Bianco Boeck
Date:
26 April 1844
Source of text:
RI MS F1 C07
Summary:

No summary available.

Contributor:
Faraday Project
Text Online
From:
Michael Faraday
To:
Christian Friedrich Schoenbein
Date:
29 April 1844
Source of text:
UB MS NS 360
Summary:

No summary available.

Contributor:
Faraday Project