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From J. D. Hooker   28 December 1860

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Summary

CD’s article worth publishing in Gardeners’ Chronicle. JDH interprets CD’s observation in terms of selection. Has observed similar phenomenon in Cruciferae, where it can be taxonomically important.

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  28 Dec 1860
Classmark:  DAR 100: 143–4, 146–8
Letter no:  DCP-LETT-3033

To J. D. Hooker   29 December [1860]

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Summary

Feels his poor stomach "saved" him from overworking his head.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  29 Dec [1860]
Classmark:  DAR 115: 83
Letter no:  DCP-LETT-3034

From J. D. Hooker   [11 May – 3 December 1860]

Summary

CD’s divergent series explains those anomalous plants that hover between what would otherwise be two species in a genus.

Inclined to see conifers as a sub-series of dicotyledons that developed in parallel to monocotyledons, but retained cryptogamic characters.

Mentions H. C. Watson’s view of variations.

Man has destroyed more species than he has created varieties.

Variations are centrifugal because the chances are a million to one that identity of form once lost will return.

In the human race, we find no reversion "that would lead us to confound a man with his ancestors".

Author:  Joseph Dalton Hooker
Addressee:  Charles Robert Darwin
Date:  [11 May – 3 Dec 1860]
Classmark:  DAR 205.5: 217 (Letters), DAR 47: 214
Letter no:  DCP-LETT-3036

To J. D. Hooker   19 [June 1860]

Summary

CD writes of his admiration for pollination contrivances in Gymnadenia. Ask George Bentham whether this plant should be removed from genus Orchis.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  19 [June 1860]
Classmark:  DAR 261.10: 69 (EH 88206052)
Letter no:  DCP-LETT-3290
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