Hopes CD will be able to receive the Copley Medal in person. HF sees it as doubly significant in recognising CD’s work and as a protest against the profession of religious as opposed to scientific faith.
Hopes CD will be able to receive the Copley Medal in person. HF sees it as doubly significant in recognising CD’s work and as a protest against the profession of religious as opposed to scientific faith.
Notes Louis Agassiz’s opinions on CD’s views.
Mating and sexual organs of insects.
No summary available.
Regarding the differences between portraits and photographs. Is sending him some magnesium for photographic purposes.
Photographic News received copies of papers from R.S.P.T. giving evidence of [JH's] use of hyposulfite of soda. Will refer to W. H. F. Talbot on use of bromine, as JH suggested. P. B. Goddard of Philadelphia claims to have used bromine in Daguerreotype process in 1839, but did not announce it publicly until 1843.
No summary available.
No summary available.