Personal news – is unwell.
Mentions "Twin-papers" ["Short notes on heredity, etc., in twins", J. Anthropol. Inst. 5 (1876): 324–9] sent by Galton.
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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.
Personal news – is unwell.
Mentions "Twin-papers" ["Short notes on heredity, etc., in twins", J. Anthropol. Inst. 5 (1876): 324–9] sent by Galton.
JDH has heard from Asa Gray, who approves of the botany primer [Botany (1876)].
A believer in evolution seeks to convince CD that a spiritual creative force, rather than natural selection, explains its operation.
Thanks for a copy of Insectivorous Plants.
At last, Expression is beginning to sell again.
Cooke has not yet decided on number of Variation [2d ed.] to print.
Provides CD with a method of obtaining a numerical ratio that expresses the superiority in heights of crossed plants to self-fertilised plants.
He has confuted Descent.
Enclosures announce his cures of potato blight, epilepsy, etc.
Has confirmed CD’s observations on Drosera.
Asks whether CD agrees that it is "no longer a fact" that the bladders of Utricularia vulgaris enable the plant to become lighter for fecundation and heavier when that act is accomplished. Plans to undertake further observations, under very high-powered microscopes, of mechanism of digestion.
Bug on Tilia, cited in Variation, was Cimex apterus.
Two photographs of T. W. Clarke, Jr, aged three, offered as examples of expression.
Sends copy of Arabische Korallen [1876].
Comments on reception of his paper on "Gastrula" [see 10012].
Has sent his paper on Echinoidea [see 10373] as a token of his veneration. He tried to address the confusion in knowledge about the different parts of the exoskeleton of the Echinodermata by tracing certain relations of homology not previously noticed. Much more work is required.
Reports on the tendency of the normally fruitless Convolvulus arvensis, to form fruit when roots are cut and plant is in danger of dying.
Reports an observation on his child’s behaviour;
claims to have captured two moths of different species in the act of copulating with each other.
Proposes an unorthodox theory of generation that explains sex determination and atavism.
Are plants that arise from vegetative propagation individuals or merely parts of the original parent plant?
He is surveying the literature on the struggle for existence among pasture plants. Asks CD for the "many cases on record" of changed relations among plants under slightly changed conditions alluded to in the Origin. [See M. T. Masters, J. B. Lawes and J. M. Gilbert "Agricultural, botanical, and chemical results of experiments on the mixed herbage of permanent meadow, conducted for more than twenty years in succession on the same land (pt 2, The botanical results)", Philos. Trans. R. Soc. Lond. 173 (1883): 1181–413.]
Purchases cigarettes for CD.
In response to CD’s query, answers that he has frequently heard discussions at the Horticultural Society of a saccharine secretion from leaves of the lime and has no doubt it really does occur. [See Cross and self-fertilisation, p. 402.]
Asks CD to come up to vote for Lankester.
Severely critical of R. L. Tait’s paper on Nepenthes communicated to the Royal Society.