Search: 1850-1859 in date 
Darwin, C. R. in addressee 
Hooker, J. D. in author 
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Showing 2140 of 56 items

From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[6–9 June 1855]
Source of text:
DAR 100: 90–3
Summary:

Finds Forbes’s continental theories, migration, and double creation are all unsatisfactory explanations of geographical distribution of plants.

Is currently working on problems of sea transport of plant species.

European plants on Australian Alps only explicable by double creations.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[8 July 1855]
Source of text:
DAR 104: 192–3
Summary:

Australian Leguminosae problem: of 900 species not ten are common to southwest and southeast. No migration; hence either creation or variation.

Himalayan thistles: graded intermediates between large and small English species, "shakes species to their foundations". Similarity of CD’s and his views on species.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
7 May 1856
Source of text:
DAR 100: 94–5
Summary:

Non-endemic Ascension Island plants brought by man, not wind-transported.

Bentham has found intermediates between oxlip and cowslip in Herefordshire.

JDH finds quantity of albumen in seeds is not variable within a species.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[26 June or 3 July] 1856
Source of text:
DAR 104: 197
Summary:

Can no longer make out story of NW. American plants; consulting Asa Gray.

Questionable validity of seed-salting experiments.

Aristolochia and Viscum seem to shed pollen before flower opens.

Ray Society should only do translations.

Thomas Thomson in India has rediscovered Aldrovanda, a rare relative of Drosera.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
10 July 1856
Source of text:
DAR 100: 96–9
Summary:

[T. Bell Salter’s?] "hybrid" Epilobium a false claim.

Admires Huxley’s response to Falconer [see 1904].

Tristan da Cunha plant list, requested by CD, supports JDH’s position [on continental extension?].

Chilean plants not exceptional.

JDH considers parallels between Australian Alps and European plants strong evidence for multiple creations.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
4 Aug 1856
Source of text:
DAR 100: 100–4
Summary:

JDH’s arguments against transmutation: 1. Plants do not show the confusion he would expect; 2. Under clearly similar physical conditions we do not find same species.

JDH’s argument against migration: commonality of alpine species. Believes migration opposes facts of botanical distribution in Van Diemen’s Land and New Zealand; prefers continental extension theory.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
9 Nov 1856
Source of text:
DAR 100: 105–10
Summary:

JDH approves MS section on geographical distribution.

Never felt so shaky about species before.

His objections to some mechanisms of distribution that CD proposes.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[16 Nov 1856]
Source of text:
DAR 100: 162–3
Summary:

JDH not happy with CD’s explanation of the absence of north temperate forms in the Southern Hemisphere, given his explanation for the spread of sub-arctic forms to the south. [CD’s note is in response to JDH’s criticism.]

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
22 Nov 1856
Source of text:
DAR 100: 111–12
Summary:

Continued debate on formation of species as a result of retreat from glaciers.

JDH suggests internal powers of species modification, which he knows CD abhors.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[early Dec 1856]
Source of text:
DAR 100: 149
Summary:

Podostemaceae flowering under water.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
7 Dec 1856
Source of text:
DAR 100: 113–14
Summary:

Has done New Zealand flora calculations. Results support CD’s theory of necessity of crossing. Trees tend to have separate sexes.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[11 Apr 1857]
Source of text:
DAR 104: 198–201
Summary:

JDH cites W. H. Harvey’s observations on Fucus and David Don’s on Juncus as examples of variations that are independent of climate. There are many such cases. Gives his working scheme for categorising variation.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[27] June 1857
Source of text:
DAR 100: 115
Summary:

Embryology of plants of low systematic order. Comparative development begins only with first post-cotyledonary leaves.

Curt letter to JDH from George Henslow.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[2 Dec 1857]
Source of text:
DAR 104: 178–9
Summary:

News of Mrs Henslow’s death.

Studying Impatiens, which bears on CD’s problems. Though genus is endemic to India, with over 100 species, CD will be glad to know they do not run into one another.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[6 Dec 1857]
Source of text:
DAR 104: 195–6, DAR 47: 192
Summary:

Finds CD’s results [of his survey of well-marked varieties from A. P. and Alphonse de Candolle’s Prodromus systematis naturalis regni vegetabilis (1824–73)] "very curious and suggestive". Thinks the Labiatae will present an obstacle to him as it is a very large and distinct order with well-defined species and genera. Would like to see him tackle more volumes of Candolle’s Prodromus, as his case can only be established by evidence from mundane plants. CD should beware of generalising from local species variability. A comparison of C. C. Babington’s and G. Bentham’s [British] Floras [Babington Manual of British botany (1843, 4th ed., 1856); Bentham Handbook of British flora (1858)] would be invaluable. Suggests CD write to Ferdinand Müller and Charles Moore in Australia. Moisture favouring extension of species is important for CD’s view.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[17–23 Dec 1857]
Source of text:
DAR 104: 194
Summary:

Sending more Candolle volumes for survey of species with well-marked varieties.

Has begun his introduction [to Flora Tasmaniae]; will not make generalisations.

J. D. Dana’s pamphlet too metaphysical for JDH.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
15 Jan 1858
Source of text:
DAR 100: 120–1; L. Huxley ed. 1918, 1: 453
Summary:

Has gone over to CD’s side on the fertilisation of clover in New Zealand by bees.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[25] Feb 1858
Source of text:
DAR 100: 115a–d
Summary:

Botanical practice can confuse CD’s compilations. Many small genera would have been species had the whole natural order [family] been known.

JDH’s low opinion of Buckle;

high opinion of Mrs Farrer.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
[14 Mar 1858]
Source of text:
DAR 104: 182–5
Summary:

Summary of JDH’s objections to CD’s survey of floras and conclusion that large genera vary more than small.

Contributor:
Darwin Correspondence Project
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From:
Joseph Dalton Hooker
To:
Charles Robert Darwin
Date:
18 Mar 1858
Source of text:
DAR 100: 115e–f
Summary:

Continued objections to methods and conclusions of CD’s survey.

Contributor:
Darwin Correspondence Project
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