Bug on Tilia, cited in Variation, was Cimex apterus.
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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].
Thanks FG for his report [on the statistical validity of CD’s experiments; see Cross and self-fertilisation, pp. 16–18]. Discusses FG’s comments, his own experiments, and the means by which the results may be analysed.
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.
Thanks WED for his letter of 20 December 1875. Is surprised and delighted by the support from WED and CD for the Index.
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.]
Obliged for Belfast Journal.
Almost impossible to determine what constitutes an individual. Definition for sexually reproducing organisms does not apply to lower ones.
Agrees to aid HA in applying for membership in a society.
Asks CD to come up to vote for Lankester.
Severely critical of R. L. Tait’s paper on Nepenthes communicated to the Royal Society.
Promises to vote for Lankester.
Acknowledges faults of R. L. Tait’s paper.
Thanks CD for comments on Arabische Korallen [1876].
Comments on Monoenia darwinii [?] as a primitive sponge.
Discusses criticisms of CD’s theory by K. E. von Baer ["Über Darwin’s Lehre", in Reden 2 (1876): 235–480].
Letter of reference giving his opinion of the character of a man who has been his footman for a year.
Notes on various instances of dimorphic stamens.