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The Charles Darwin Collection
The Darwin Correspondence Project is publishing letters written by and to the naturalist Charles Darwin (1809–1882). Complete transcripts of letters are being made available through the Project’s website (www.darwinproject.ac.uk) after publication in the ongoing print edition of The Correspondence of Charles Darwin (Cambridge University Press 1985–). Metadata and summaries of all known letters (c. 15,000) appear in Ɛpsilon, and the full texts of available letters can also be searched, with links to the full texts.
Agrees to write to William Ogle [about twins with crooked fingers].
Describes growth of sweetpeas for experiment.
Thanks FG for issues of Revue [Scientifique vol. 7, containing lectures by Claude Bernard].
Ogle says twins [with crooked fingers] are his sisters.
Recommends book by M. A. Puvis [De la dégénération des variétés de végétaux (1837)].
Has heard that FG will write on inheritance. Huxley does not believe in E. G. Balbiani’s views on subject.
In London yesterday for Vivisection Commission.
Is revising his chapter on Pangenesis [in Variation, 2d ed.] to allow that gemmules probably multiply in the reproductive organs.
Notes examples of inheritance of acquired characteristics cited by Brown-Séquard.
Doubts that double parentage is necessary for complex organisations.
Comments on FG’s paper ["A theory of heredity"]. Finds essay difficult to understand. Objects that FG’s theory conflicts with phenomenon of use and disuse. Conflicts also with rarity of bud-variations in nature.
Says he has ordered FG’s article ["The history of twins", Fraser’s Mag. 92 (1875): 566–76; revised in J. Anthropol. Inst. 5 (1876): 391–406].
Comments on FG’s paper ["The history of twins"].
CD is "in a passion with the Spectator who always muddles".
Mentions revisions [in Variation, 2d ed.].
Argues with FG’s theory of heredity, defending Pangenesis: "I cannot doubt that every unit of the hybrid is hybridised and sends forth hybridised gemmules."