JDH’s letter invaluable for an answer to Nägeli’s essay [Entstehung und Begriff der Naturhistorischen Art (1865)].
Has gone through his index to Gardeners’ Chronicle but finds little of use to JDH for his Flora.
Showing 81–95 of 95 items
JDH’s letter invaluable for an answer to Nägeli’s essay [Entstehung und Begriff der Naturhistorischen Art (1865)].
Has gone through his index to Gardeners’ Chronicle but finds little of use to JDH for his Flora.
Reports the whereabouts of S. J. O’H. Horsman, who has failed to pay for an organ he ordered.
Questions from CD related to bird plumage and sexual differences, with answers by EB.
Asks about expression of emotion among Negroes and American Indians in Nicaragua. Queries enclosed.
"Though next Spring will be rather late, I do not think it will be too late, & if in your power to send me some living specimens of Trox sabulosus, I shd. be greatly indebted to you.––-"
Instructions for woodcuts showing sexual differences in beetles, for Descent.
On problem of sterility, CD cannot persuade himself that it has been gained by natural selection.
On sexual selection and minute variations, he tends to agree with ARW. Sends George Darwin’s notes on ARW’s argument.
Cannot judge GWC’s fitness for the Botanical Chair at Oxford. But CD appreciates his work, particularly that on spontaneous generation [Proc. R. Soc. Lond. 13 (1863–4): 313; 14 (1865): 178].
Did not know of complex change of plumage. From WBT’s letter, CD thinks six weeks to two months old is the best period. Sends details of breeds and other particulars.
Sorry JJW cannot visit.
Will go to sea-side for five weeks at end of July.
Does Vidua have double annual moult? [See Descent 2: 181.]
Thinks GHL’s articles are quite excellent; hopes they will be republished.
Discusses adaptation. Doubts whether similar conditions without selection can produce similar organs independent of blood relationship: "resemblances due to descent and adaptation can commonly be distinguished".
Discusses luminous insects, electrical organs of fish, thorns and spines.
Invites JJW to visit Down. Will try to get A. R. Wallace and H. W. Bates also.
Enjoyed JJW’s visit.
Interested in changes in plumage of pheasants.
Still at work on sexual selection in birds.
A letter strongly recommending him for the post of Assistant Secretary of the Geological Society.
Sends some questions on secondary sexual differences of fishes [missing], which he hopes AG will look over.
Invites AG to come to Down.
Encloses queries on sexual differences and nest-building habits of fish.