Various observations from his experience in Africa relevant to Descent.
Fertility of hybrids of blacks and whites.
Protective coloration of Sahara animals.
Natives’ ideas of female beauty.
Showing 21–40 of 53 items
Various observations from his experience in Africa relevant to Descent.
Fertility of hybrids of blacks and whites.
Protective coloration of Sahara animals.
Natives’ ideas of female beauty.
Thanks for FD’s help. CD cannot conceive what Mivart means by "the identity between eyes of Cephalopods and Vertebrata".
Has invited Michael Foster to Down.
Discusses the origin and advantages of sexual differentiation in terms of division of labour.
Discusses the origin of the giraffe’s neck and the unsoundness of St G. J. Mivart’s view with respect to it.
Points out an error in Descent.
Directions to Down.
Comments on dubious story involving natural history of Formosa. Suggests that Robert Swinhoe could give an answer.
Thanks GR, who made one of the most wonderful expeditions on record, for some notes which he will consider if he ever has to prepare a new edition [of Descent].
Argues that coloration of eggs is a protective adaptation.
Will call tomorrow.
Mentions the difficulties in explaining the separation of sexes and Carl Nägeli’s view that the sexes of plants were primordially distinct.
Has been experimenting for five or six years to demonstrate that the benefits of crossing are the same as those derived from a slight change of conditions.
Michele Lessona will translate Descent into Italian [1871].
Sends his review from Nuova Antologia [17 (1871): 177–94].
In a letter to Archivio per l’Anthropologia he raises some doubts about sexual selection and proposes "Neogenesis" as a complement to natural selection in cases of rapid change.
A geologist friend leaving for Nevada offers to investigate any questions CD may have for this region.
Nesting plumage of common chaffinch resembles adult winter plumage of female brambling.
As a professor of natural history, LD has spread CD’s doctrines in Hungary. Now wishes permission to translate Descent.
Reports the passing of [Universities Tests] Bill and the consequent end to a bother.
Thanks LHM for his introductions for CD’s sons and for his instructions about their route [for their U. S. visit].
Discussion of mimicry and sexual selection among butterflies, occasioned by reading Descent.
Replies to CD’s queries on movement of the eyes in meditation, and changes in the iris in rage and terror [see Expression, pp. 229, 304].
Has read of Descent in Polish newspapers. Writes against the Bible view, but believes in the Almighty.
Thanks FCD for information about eyes [for Expression].
Must interrupt work on the subject to prepare new edition of Origin [6th].
Comments on gift of a new work by FCD [possibly "Die Projection der Gesichtserscheinung nach der Richtungslinien", Arch. Opthalmol. 17 (1871) Abt. 2: 1–68].
Sends publication [unspecified].
Notes adaptive mechanism in epiphytes.
Observations on orchids. Ophrys apifera; confirms CD’s observation on pollinia. The nesting of ducks in trees is an example of change of instinct and habit.