Summary

Questions correctness of two statements in Origin: 1. That fulmar petrels are the most numerous birds in the world;

2. That the increase of one form of thrush in Scotland has been concomitant with the decline of another form.

Summary

Statement of U. S. sales of Origin, Expression, and Descent.

Summary

Discourages grafting ears of rabbits. Suggests comb of fowl.

Summary

Books CD requested have been packed and sent.

He will present CD with the classified catalogue [of Royal Geographical Society].

He has not learned whereabouts of Thomas Staley.

Summary

On the decline of population of the Hawaiian Islands, before advent of Europeans; infanticide, polyandry.

Summary

He was chagrined to read in Descent CD’s statement that smallpox vaccine has saved thousands of lives. He has found no scientific reason to believe in the prophylactic effect of the vaccine. In epidemic of 1870–1, smallpox killed more vaccinated persons than were killed by cholera, against which there is no vaccine, in 1853–4. Cites the difficulties in arriving at a conclusive proof of vaccine’s effectiveness.

Summary

Cannot help with Pinguicula or Utricularia. Mrs Mary Treat is studying Utricularia.

Forwards his short piece on duration of varieties [New York Tribune 8 Dec 1874; Am. J. Sci. 3d ser. 9 (1875): 109–14].

Summary

Thanks GJR for copy of his book [Christian prayer and general laws (1874)].

Discusses breeding and sterility.

Discusses experiments to test Pangenesis. Cites useful references.

Suggests GJR visit Kew gardens.

Summary

RBS seeks a testimonial from CD; he is applying for the British Museum vacancy left by J. E. Gray’s resignation and A. Günther’s promotion.

Summary

Cannot answer AN’s questions about Origin; it would take weeks to find the references. Assures AN he stated nothing without an authority he thought good.

Feels sure missel thrushes have increased in number since his youth. Starlings have also increased astonishingly in Kent. "How inexplicable most of these cases are".

In a P.S. remembers his source for statement about increase of missel thrushes in Origin.

Summary

States his very high opinion of [JC-B’s?] abilities as judged from his writings and many excellent letters, and his suitability for some post in histology and pathology.

Summary

FEA has expressed CD’s views on the moral sense with remarkable clearness and correctness; his eulogy is magnificent ["Darwin’s theory of conscience and its relation to scientific ethics", Index 12 Mar 1874]. Cannot give a judgment on the essay because he has had "no practice in following abstract and abstruse reasoning".

CD does not see how morality can be "objective and universal". No one would call the maternal bond in lower animals a "moral obligation". When a social animal "becomes in some slight incipient degree" a moral creature "capable of approving or disapproving of its own conduct" do not such obligations remain of a so-called instinctive nature rather than becoming at once moral obligations?

Summary

Has been invited to lecture at the Royal Institution by Spottiswoode. Discusses subjects he might deal with and his reasons for attempting it.

Tells of a complicated case of a double sale of a living.

Huxley says F. M. Balfour passed brilliantly.

Summary

Returns historical sketch [of GHD’s "cousin paper"?] with comments. "For Heavens sake put a sentence in some conspicuous place that your results seem to indicate that consanguineous marriage, as far as insanity is concerned, cannot be injurious in any very high degree."

Summary

Sends MS intended some day for the Viola tricolor section of Cross and self-fertilisation [pp. 123–8] to be used by JL in his British wild flowers (1875).

Summary

Wishes CD could publish Origin with footnotes.

Increases in bird populations: starlings are increasing, but AN cannot give reason; mistletoe-thrush increasing but not ousting song-thrush. Doubts trustworthiness of [George?] Edwards, CD’s authority in Origin on this matter [see Origin, 6th ed., p. 59].

AN opposed to bird protection legislation to prohibit egging. Argues egging does not decrease number of birds.

Summary

General observations on the native Hawaiian population.

Summary

Has finished the "cousin paper" and will offer it to W. Farr for the Statistical Society.

Describes other work in progress.

Has CD heard of A. M. Mayer’s curious work on audition of insects [Am. J. Sci. 3d ser. 8 (1874): 89–103?]

Summary

Birthday greetings.

Summary

Thanks WJB for his reference [see 9691]. Is curious fact that the humble bees did not use the pollen, but the hive bees did.