Sends Variation and would like to hear what FM thinks of Pangenesis.
Thanks for information on expression.
Dimorphic plants;
differences in seed production in cross- and self-fertilised plants.
Showing 1–20 of 26 items
Sends Variation and would like to hear what FM thinks of Pangenesis.
Thanks for information on expression.
Dimorphic plants;
differences in seed production in cross- and self-fertilised plants.
Is working on sexual selection and is interested in any anomalous sex ratios in lower animals and any sex-related characters.
Thanks for Nathusius [Die Racen des Schweines (1860)].
CD will call on JEG to hear his views on specific differences of pigs.
Does not know who has "cut me up so severely" in the Athenæum but suspects "your great man in the Museum" [Richard Owen].
Reports work on sexual selection. Problems with the relative numbers of the two sexes and polygamy. Asks ARW’s help with several questions on polygamous birds.
Pleased by ARW’s response to Pangenesis.
On negative reception by his friends.
Further argument concerning sterility and natural selection.
Polygamy and sexual selection.
Protection.
Obliged for JP’s account of sheep. Such articles would make naturalists think more of natural selection.
E. A. Darwin’s health bad.
Asks about sex ratio in sheep births.
Thanks for facts about birds displaying plumage during courtship; "for Butterflies I must trust to analogy altogether in regard to sexual selection".
Invites JJW to visit in summer.
CD arranging for a translation of FM’s Für Darwin by W. S. Dallas.
On his Primula paper for the Linnean Society ["On the specific difference between Primula veris, Brit. Fl. (var. officialis, Linn.), P. vulgaris, Brit. Fl. var. acaulis, Linn.), and P. elatior, Jacq.; and on the hybrid nature of the common oxlip; with supplementary remarks on naturally produced hybrids of the genus Verbascum", [officinalis!?] J. Linn. Soc. Lond. (Bot.) 10 (1869): 437–54].
Peacocks and sexual selection.
ARW’s sterility argument has driven CD’s sons half-mad.
There are so many doubtful points on the problems relating to sterility that they will never agree.
Movement in plants.
Dimorphism.
Would welcome FM’s opinion of Pangenesis.
More on the "terrible problem" of natural selection and sterility. CD’s reasons for disagreeing with ARW. CD analyses and answers ARW in detail in defence of his conclusion that sterility cannot be increased through natural selection.
Warns ARW of dubious character of list of European alpine genera and species in volcanoes of Hawaii. Problems of geographical distribution in oceanic islands.
Admires ARW’s "Theory of birds’ nests" [J. Travel & Nat. Hist. 1 (1868): 73].
Discusses their respective views on birds’ nests, sexual selection, and protection.
Asks why, if brilliant colours of female butterflies are result of protective mimicry, do not males become equally brilliant? CD believes variation in females alone accounts for it, rather than protection.
More on CD’s objections to ARW’s views on protection and natural selection.
Sexual selection.
Criticism of ARW for too little esteem of the role of sexual selection as agent in giving colour.
Response to other topics.
Is glad FM approves of a translation of Für Darwin.
Hopes FM will think well of Pangenesis.
Sexual differences in insect auditory and stridulating organs.
Read FM’s paper on Balanus with great interest ["On Balanus armatus", Ann. & Mag. Nat. Hist. 4th ser. 1 (1868): 393–412].
Thanks for interesting letter. ‘How very curious the case of the bright-coloured birds which conceal themselves in holes!’
FM’s additions for English edition [1869] of Für Darwin.
Dimorphic plants.
The problem of dimorphic plants and their fertility.