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From H. C. Watson to George Gordon   27 June 1861

Summary

Regrets he cannot assist the fulfilment of CD’s request for a specimen of the orchid Corallorhiza.

Author:  Hewett Cottrell Watson
Addressee:  George Gordon
Date:  27 June 1861
Classmark:  Elgin Museum (Gordon Archive 61.9)
Letter no:  DCP-LETT-3197F

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  • 1859] ). Watson corresponded with CD on various aspects of CD’s transmutation theory, and promoted the idea of a principle of convergence, which, he argued, was necessary to limit the large number of specific types which would proliferate under CD’s principle of divergence (see, for example, this volume, Supplement, letter from H.  C. Watson to J.  D.  Hooker, …

From H. C. Watson to J. D. Hooker   4 January 1861

Summary

Comments on the travels of JDH.

Genera plantarum a most worthy undertaking.

Criticisms of the Darwin–Hooker understanding of HCW’s views of convergence.

Author:  Hewett Cottrell Watson
Addressee:  Joseph Dalton Hooker
Date:  4 Jan 1861
Classmark:  Royal Botanic Gardens, Kew (Directors’ Correspondence 105: 205)
Letter no:  DCP-LETT-3041A

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  • J.  D.  Hooker, [16 April 1846] ). Hooker used centrifugal variation to designate variation that accompanied extensive geographical distribution, as in Senecio ( Hooker 1844–7 , p.  315), while Watson used it to signify the mechanism of divergence. CD disapproved of Hooker’s use of the word centrifugal ( Correspondence vol.  7, letter to Charles Lyell, 31 [October 1859] …
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