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From George Robert Waterhouse    [April 1844]



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.

Author:  George Robert Waterhouse
Addressee:  Charles Robert Darwin
Date:  [Apr 1844]
Classmark:  DAR 48: 79
Letter no:  DCP-LETT-2026

From J. D. Hooker   5 April 1844



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

Comments on typical forms.

Preparing first part of Galapagos plants for printing.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  5 Apr 1844
Classmark:  DAR 100: 12–13
Letter no:  DCP-LETT-745

To J. D. Hooker   [17 April 1844]



Thanks for information on printing charges

and for clarifying "typical forms".

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

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [17 Apr 1844]
Classmark:  DAR 114: 18
Letter no:  DCP-LETT-746

To Christian Gottfried Ehrenberg   20 April [1844]


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

Author:  Charles Robert Darwin
Addressee:  Christian Gottfried Ehrenberg
Date:  20 Apr [1844]
Classmark:  Museum für Naturkunde Berlin (MfN/HBSB, N005 NL Christian Gottfried Ehrenberg Nr. 43)
Letter no:  DCP-LETT-747

From George Robert Waterhouse   26 April 1844


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.

Author:  George Robert Waterhouse
Addressee:  Charles Robert Darwin
Date:  26 Apr 1844
Classmark:  DAR 181: 14
Letter no:  DCP-LETT-748

From G. R. Waterhouse   [after 26 April 1844]


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.

Author:  George Robert Waterhouse
Addressee:  Charles Robert Darwin
Date:  [after 26 Apr 1844]
Classmark:  DAR 181: 15
Letter no:  DCP-LETT-749
Document type
letter (6)
01 (1)
05 (1)
17 (1)
20 (1)
26 (2)