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To J. D. Hooker   [10 February 1846]

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Summary

Thinks JDH’s explanation of polymorphism on volcanic islands is probably correct.

Proposes experimental test to see whether alpine form of a plant is inherited like a true variety.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [10 Feb 1846]
Classmark:  DAR 114: 54
Letter no:  DCP-LETT-951

To J. D. Hooker   [before 15 July 1874]

Summary

Suggests experiments to try [with Nepenthes]. Asks JDH to test whether cabbage seeds and peas exposed to the ferment germinate.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [before 15 July 1874]
Classmark:  Royal Botanic Gardens, Kew (JDH/3/6 Insectivorous plants 1873–8: 38–9)
Letter no:  DCP-LETT-9523

From J. D. Hooker   1 July 1874

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Summary

Has "given the slip" to Nepenthes, but is setting a plant up in an enclosure for special observation.

Has some splendid Sarracenia and will perform any miracle regarding them CD puts him up to.

Charmed with CD’s account of Pinguicula. Would like to try whether Lychnis has the same use of viscid fluid.

Has written for English Utricularia for CD.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  1 July 1874
Classmark:  DAR 103: 200–1
Letter no:  DCP-LETT-9526

To J. D. Hooker   2 July 1874

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Summary

Thinks Frank and he have worked out Pinguicula well and they long to attack Utricularia. Tried several plants with sticky glandular hairs; some few absorb ammonia, but the greater number do not. If JDH sends plant or seed of Lychnis CD will examine it to see whether it catches many flies. Asa Gray has written him much about Sarracenia, with a specimen showing the splendid dodge by which ground insects are enticed up and then drowned. Describes how it may be investigated, to see whether it absorbs decayed matter from flies, or ammonia thus generated.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  2 July 1874
Classmark:  DAR 95: 322–3
Letter no:  DCP-LETT-9529

To J. D. Hooker   [15 February 1846]

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Summary

Has had to make a Post Office order to JDH payable at Charing Cross instead of Kew.

Does Sir William [Hooker] know the Dean of Manchester’s London address?

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [15 Feb 1846]
Classmark:  DAR 114: 54c
Letter no:  DCP-LETT-953

From J. D. Hooker   3 July 1874

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Summary

Sends results of his observations on Nepenthes. Would be grateful for any hints for further observations.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  3 July 1874
Classmark:  DAR 103: 202–3
Letter no:  DCP-LETT-9530

To J. D. Hooker   4 July 1874

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Summary

It would be interesting to prove that some plants feed on decayed animal matter whilst others like Drosera can digest fresh animal matter. Suggests the method for observing this.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  4 July 1874
Classmark:  DAR 95: 324–5
Letter no:  DCP-LETT-9532

From J. D. Hooker   8 July 1874

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Summary

The appetite of Nepenthes for hard-boiled egg is prodigious.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  8 July 1874
Classmark:  DAR 103: 204–5
Letter no:  DCP-LETT-9537

From J. D. Hooker   15 July 1874

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Summary

Asks what can be the meaning of appendages to tips of leaflets of enclosed Acacia or Mimosa.

Is at fibrin today.

Michael Foster suggests coagulation of protoplasm may be diseased, not digestive, symptom.

F. M. Balfour is at Kew today.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  15 July 1874
Classmark:  DAR 103: 206–7
Letter no:  DCP-LETT-9548

To J. D. Hooker   [25 February 1846]

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Summary

Glad to hear of JDH’s botanical appointment [with Geological Survey].

Edward Forbes has written about his subsidence doctrine; CD objects to its hypothetical base.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [25 Feb 1846]
Classmark:  DAR 114: 55
Letter no:  DCP-LETT-955

To J. D. Hooker   16 July 1874

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Summary

The Acacia must be Belt’s "Bulls’ horns".

The complexity of Utricularia has driven Frank and CD almost mad. Suspects it is necrophagous, i.e., it cannot digest, but absorbs decaying animal matter.

Foster is certainly in error. Every insect that Drosera catches causes aggregation.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  16 July 1874
Classmark:  DAR 95: 326–7
Letter no:  DCP-LETT-9550

From J. D. Hooker   16 July [1874]

Summary

JDH has told Murray that the Quarterly Review article attacking George [Darwin] and CD [137 (1874): 40–77] was "as base as it was baseless".

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  16 July [1874]
Classmark:  DAR 210.1: 24
Letter no:  DCP-LETT-9552

From J. D. Hooker   18 July 1874

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Summary

Two Nepenthes have devoured two pieces of fibrin [sketch shows size] in three days.

Has CD any objection to JDH’s giving an account of CD’s Drosera observations at Belfast [BAAS meeting] in a résumé of pitcher-plant results ["Address to the department of botany and zoology", Rep. BAAS 44 (1874): 102–16]?

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  18 July 1874
Classmark:  DAR 103: 208–9
Letter no:  DCP-LETT-9553

To J. D. Hooker   20 July [1874]

Summary

"It is grand about Nepenthes."

JDH is welcome to notice in any way any of CD’s published or unpublished results with insectivorous plants. Gives an abstract of his observations on Drosera.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  20 July [1874]
Classmark:  Royal Botanic Gardens, Kew (JDH/3/6 Insectivorous plants 1873–8: 32–37)
Letter no:  DCP-LETT-9555

From J. D. Hooker   22 July 1874

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Summary

Stupefied by CD’s trouble and kindness. All he wanted for Belfast meeting was assurance that mention of published work on Drosera, etc., in Nature, etc., would not interfere with CD’s book.

Would like his Nepenthes results to go to CD or to Royal Society, but prefers CD take them.

Cephalotus very puzzling.

Peas and cabbage grow twice as fast after two days’ immersion in Nepenthes as when placed in distilled water, but four days’ immersion seems to kill them.

Has a splendid Australian Drosera twice as big as D. rotundifolia.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  22 July 1874
Classmark:  DAR 103: 210–13
Letter no:  DCP-LETT-9558

To J. D. Hooker   23 July [1874]

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Summary

JDH should do as he likes with insectivorous plant materials.

He has always thought telling JDH what he has been doing was as good as publishing.

Cephalotus seems as horrid a puzzle as Utricularia.

Nepenthes will turn out a great job if the pitchers of different species act differently. JDH’s paper on Nepenthes [Rep. BAAS 44 (1874): 102–16] is too long for CD’s book. Well deserves a place in Philosophical Transactions.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  23 July [1874]
Classmark:  DAR 95: 328–31
Letter no:  DCP-LETT-9560

To J. D. Hooker   [25 February – 2 March 1846]

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Summary

Sends enclosure for JDH to read [letter from E. Forbes, 956]. "I cannot see my way about his post-miocene land."

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [25 Feb – 2 Mar 1846]
Classmark:  DAR 114: 56c
Letter no:  DCP-LETT-957

To J. D. Hooker   [4 March 1868]

Summary

Arrangements to dine at JDH’s club.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  [4 Mar 1868]
Classmark:  Cleveland Health Sciences Library
Letter no:  DCP-LETT-13816

To J. D. Hooker   22 [January 1844 – March 1882]

Summary

Discusses books returned

and invites him to Down for a few days.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  22 [Jan 1844 - Mar 1882]
Classmark:  Sotheby’s (dealers) (14 & 28 May 1983)
Letter no:  DCP-LETT-13816A

From Joseph Dalton Hooker   [c. April 1851]

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Summary

Wants catalogue of small islands that contain peculiar plants. Thinks complete floras of islands in various stages of depression [subsidence] would provide good data.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  [c. Apr 1851]
Classmark:  DAR 100: 164
Letter no:  DCP-LETT-1382
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