Showing 1–20 of 78 items
Sends prospectus of forthcoming work by his brother [Henry Trimen] and W. T. Thiselton-Dyer [Flora of Middlesex (1869)]. Hopes CD will subscribe.
Sends photo of four Fuegians, including Jemmy Button’s son.
Reports incident of two wild stallions on the Falklands acting together in an attempt to take a troop of mares from an introduced English horse [see Descent 2: 241].
Encloses information on sex ratios in thoroughbred horses.
On numerical proportions of sexes in insects; coloration. Dimorphism in dragonflies (Agrion) in which usual coloration is reversed in sexes [see Descent 1: 362–4].
Wallace seems to ride his hobby too hard.
Responds to CD’s queries on polygamy in birds and orang.
Discusses sexual selection and secondary characters; colours and sexual preference.
Expresses his admiration for Pangenesis; it is superior to Herbert Spencer’s theory.
ARW differs somewhat with CD’s chapter on causes of variability [ch. 22 in Variation]. Thinks several of CD’s arguments are unsound.
Briefly discusses how natural selection might aid in producing sterility between allied species.
Could not believe Owen to be so demoniacal as to write the Athenæum review [of Variation].
Gardeners’ Chronicle review [see 5918] is weak. CD’s ideas on causes of variation may be as hazy as the reviewer’s.
Huxley’s clever remark on Pangenesis. JDH’s view of Pangenesis as fundamental to development doctrines, but nothing is gained by formulation in terms of germs or gemmules.
Tries to answer question on last page of CD’s letter anent sexuality.
On polygamous birds and the pairing of birds. Late singing of males. [see Descent 2: 107.]
A reply to CD’s inquiry in Gardeners’ Chronicle [Collected papers 2: 135]. The proportion of females to males in lambs of highland black-faced sheep.
Sends paper on conditions that favour predominance of plants.
Encloses table showing proportion of sexes in Rutland.
Replies to CD on proportion of sexes in butterflies, coloration of moths, and courtship. Encloses copies of letters on these subjects between HTS, Henry Doubleday, and John Hellins.
Discusses arrangements for American edition of Variation.
Observations on apparently inherited instinct in a dog.
Answers for father, who is ill, on difference between manes of stallions and mares.
Recommends J. Scott’s paper on crossing varieties of Verbascum.
Notes on the taxonomy of Primula.
On the proportion of sexes in crabs; coloration and structural differences.
Corrections [incorporated in 2d issue of Variation].
His Majesty the King of Prussia has conferred upon CD the Order, Pour le Mérite, for Sciences and Arts.
Congratulates [G. H. Darwin] on being Second Wrangler.
Thanks CD for Variation.
Sends some Australian boiled beef for CD to sample.
Congratulations on George Darwin’s success at Cambridge.
Discussion of the pig in light of CD’s Variation.
Work of Hermann von Nathusius [Die Racen des Schweines (1860)].
