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Darwin Correspondence Project

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To Thomas Rivers 11 January [1863]

Thanks for "rich and valuable" letter [missing].

Has read TR’s paper in Gardeners’ Chronicle ["Seedling fruits – plums", (1863): 27] – "a treasure to me".

Questions about seedling peaches that approach almonds.

Asks whether TR has ever observed varieties of plants growing close to other varieties for several generations without being affected by crossing.

… Darwin’s Natural selection: being the second part of his big species book written from 1856 to 1858. Edited by R. C. Stauffer. Cambridge: Cambridge University Press. 1975. Variation : The variation of animals and plants under domestication. By Charles Darwin. 2 vols. London: John Murray. 1868. …