Must postpone meeting at Kew Observatory because of a severe cold. Asks JH to choose a later date.
Must postpone meeting at Kew Observatory because of a severe cold. Asks JH to choose a later date.
Explains and encloses abstract of paper on action of magnetic oxides under various conditions. Discusses their purifying influence on water.
Outlines B.A.A.S.'s proposals regarding magnetic and meteorological observations, to be laid before Prince Albert.
Wishes JF success and rest in his new position [at St. Andrews].
Announces appointment of James D. Forbes to the Principalship of the United College at St. Andrews.
Again admires WH's quaternions but begs that WH make them more accessible. Suggests book with rules clearly stated and examples relating them to ordinary problems.
Reports favorably on sections of WH's book [Elements of Quaternions] that JH read. Predicts its importance and wide circulation. Is too busy to read more now.
Discusses his telescopes and their dimensions. Wants to obtain an object glass of an 8-in. aperture.
Receives additions to JH's Telescope.
Questions concerning the manuscript of JH's Telescope. Will send proofs to London.
Sends dimensions of an object glass.
Provides information on a telescope being built by [Thomas] Cooke for HF's brother, [Isaac] Fletcher.
Provides information on glass made by HS.
Answers JH's inquiry concerning JD's telescope manufacturing process.
Confirms measurements of a transit circle.
Regarding telescopes in various places.
Informing him that he has just seen an original portrait of William Herschel in a dealer's shop in Bath.
Advises him to put his house in the hands of a temporary tenant so that he can rest.
Is sending the third volume of Ecliptic stars. Has arrived in Leamington for the winter and for his daughter's marriage.
Gives details of his various telescopes and cameras.