Is seeking election to the Royal Society.
Is seeking election to the Royal Society.
Thanks for photographs [of German scientists].
Corrects misinformation about refraction and dispersion of mercury ethyl and mercury methyl.
Thanks for all five numbers of Der Mensch [1866].
Had not known that Rütimeyer had written on modification of species.
Makes suggestions for the solution to the three point probability problem using integrals of infinity.
Obliged for JW’s information on variability of size of bees’ cells. Hexagonal cells not always work of several insects. W. H. Miller found great variability in thickness of cell walls.
Discusses Louis Agassiz’s theory of the glaciation of Brazil.
Will be pleased to sign FWF’s certificate for the Royal Society if he can send it to CD, who does not have the strength to go to London.
Asks CD whether he knows of a medicine to check vomiting – for a friend dying from starvation as a result.
Duke of Somerset is looking for two naturalists for survey ship to Korea and Strait of Magellan.
Looks forward to reading Variation.
Explains how two or more female forms occur in one species through selection. The physiological problem remains of how each produces offspring like the other without intermediates. Is not CD’s case of varieties that will not blend the physiological test of a species needed for "complete proof of the origin of species"?
"Travels" postponed.
No summary available.
Thanks CD for supporting his application to the Royal Society.
No summary available.
No summary available.
Cannot give advice on the artistic merits of her photographs as he is not qualified, but offers suggestions and praise on the mechanics of the art.
Memorandum of a meeting of the Natural History & Antiquarian Society held in Dumfries on Tuesday 6 February 1866.
No summary available.
Requests repayment of loan as FR promised last spring.
ARW’s simple explanation of dimorphic forms is satisfactory.
On "non-blending" of certain varieties, CD thinks ARW has not understood him. He does not refer to fertility. He crossed two differently coloured varieties of peas and "got both varieties perfect, but none intermediate". Something like this must occur in ARW’s butterflies.
Discussion of Mrs Agassiz’s letter [to Mary Lyell, forwarded to CD] regarding S. American glacial action,
with comments on Bunbury’s letter on temperate plants.
Refers to opinions of Agassiz, David Forbes, Hooker, and CD on glacial period and glaciers.
Wishes he had published a long chapter on glacial period [Natural selection, pp. 535–66] written ten years ago.
Tells of death of his sister, Catherine, and other family matters.