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Hooker, J. D. in addressee 
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
[13 or 20] Nov 1843
Source of text:
DAR 114: 1
Summary:

Congratulations on JDH’s safe return.

Henslow has sent CD’s S. American plants to JDH for examination.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
[12 Dec 1843]
Source of text:
DAR 114: 2
Summary:

Thanks JDH for short sketch of botanical geography of Southern Hemisphere. Comments on his own S. American collections and observations; notes other Galapagos collections.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
[11 Jan 1844]
Source of text:
DAR 114: 3
Summary:

Queries on ratios of species to genera on southern islands. CD’s observations on distribution of Galapagos organisms, and on S. American fossils, and facts he has gathered since, lead him to conclusion that species are not immutable; "it is like confessing a murder".

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
22 [Jan 1844 - Mar 1882]
Source of text:
Sotheby’s (dealers) (14 and 28 May 1983)
Summary:

Discusses books returned

and invites him to Down for a few days.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
[27 Jan 1844]
Source of text:
DAR 114: 4
Summary:

C. G. Ehrenberg would like some earth from Galapagos, Tierra del Fuego, and the Falklands; wishes to hunt for Infusoria.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
[3–17 Feb 1844]
Source of text:
DAR 114: 5
Summary:

Thanks for information for Ehrenberg.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
23 Feb [1844]
Source of text:
DAR 114: 6
Summary:

Has just completed Volcanic islands.

Sends queries on Galapagos flora in particular and island floras in general; also on relationship of wide-ranging species to wide-ranging genera.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
[6 Mar 1844]
Source of text:
DAR 114: 7
Summary:

Affinity of Galapagos with nearest Pacific islands. Relationship between ranges of species in time and space. Comparison of Malden Island and Galapagos plants. Affinities of Oceania plants with continental floras.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
11 Mar [1844]
Source of text:
DAR 114: 8
Summary:

Advice to JDH on problems of printing and publishing.

Remarks on differences of species between islets of Galapagos group.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
16 Mar [1844]
Source of text:
DAR 114: 9
Summary:

Asks JDH to forward publishing information to J. E. Gray.

Has received JDH’s infusorial specimens for Ehrenberg.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
31 Mar [1844]
Source of text:
DAR 114: 10
Summary:

Thanks for JDH’s interesting details about the Galapagos.

Clarification of CD’s query about the relationship between the range of a genus and the ranges of its constituent species.

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:
Joseph Dalton Hooker
Date:
1 June [1844]
Source of text:
DAR 114: 11
Summary:

Asks if J. E. Gray has returned [printing] estimates for Zoology.

Henslow has some Galapagos plants which he forgot to forward to JDH.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
29 [June 1844]
Source of text:
DAR 114: 12
Summary:

Encloses letter from Ehrenberg [758] about Infusoria.

Intends to visit Kew.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
[14 July 1844]
Source of text:
DAR 114: 13
Summary:

Health and weather permitting, CD proposes to visit Kew.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
22 July [1844]
Source of text:
DAR 114: 14
Summary:

Encloses letter from Ehrenberg [762], who wants information on deep-sea soundings from JDH’s voyage, and on isolated islands.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
[1–29 Aug 1844]
Source of text:
DAR 114: 15
Summary:

Encloses Ehrenberg letter, Galapagos seaweed, and specimens of Conferva.

H. Denny would like specimens of Antarctic Pediculi.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
29 [Aug 1844]
Source of text:
DAR 114: 16
Summary:

Encloses pamphlet from Ehrenberg who asks about deep-sea soundings from JDH’s voyage.

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

Acknowledges note and parcel for Ehrenberg.

Considers why different areas have different numbers of species. Gives an example opposing JDH’s view that paucity of species results from vicissitudes of climate. CD has concluded that species are most numerous in areas that have most often been divided, isolated from, and then reunited with, other areas. Cannot give detailed reasons but believes that "isolation is the chief concomitant or cause of the appearance of new forms".

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
[10–11 Nov 1844]
Source of text:
DAR 114: 19
Summary:

Origin of Antarctic brash ice.

Further on case of Lycopodium: does JDH know any genera of plants whose species are variable in one continent but not in another? Discussion on variations between floras as regards species richness, and factors affecting geographical distribution. On species, CD expects "that I shall be able to show even to sound naturalists that there are two sides to the question of the immutability of species; – that facts can be viewed and grouped under the notion of allied species having descended from common stocks". Mentions books and papers for and against species mutability. CD believes past absurd ideas arose from no one’s having approached subject on side of variation under domestication.

Would like to see Clarke’s paper

and would welcome visit from JDH.

Contributor:
Darwin Correspondence Project
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