Comments on the bad habits creeping into the language of the German Academies. Sends list of papers and also a transcript of GE's paper for the Astronomische Nachrichten.
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Comments on the bad habits creeping into the language of the German Academies. Sends list of papers and also a transcript of GE's paper for the Astronomische Nachrichten.
Asks WT whether WT made a certain claim about the spectrum of strontium. Recounts observations of the strontium spectrum made by JH in 1822.
Received memoirs of [Josiah] Quincy. Has not had time to peruse the work in its entirety. Thanks EQ for the book.
Points out that [Joel?] Spiller's article, 'Hyposulphite of Ammonia for fixing,' is 'copied verbatim' from a work of JH's.
Has heard from Emma, son William's wife, that the solar eclipse will occur in the rainy season, and thus will not likely be visible [see JH's 1867-9-29]; JH is wondering if the equipment from the R.S.L. arrived safely.
Discusses the action of hyposulphite of ammonia on muriate of silver. Gives directions for preparing hyposulfite of silver.
Discusses the sudden motion of some sunspots. Does not think planetary action is a very probable cause. Discusses upcoming conjunction of Venus and Jupiter.
Comments on the death of a number of friends, his own poor health, and how he spent the winter working through his double-star observations.
Difficulty understanding notation used in [FJ]'s pamphlet on musical scales. JH's comments on [FJ]'s formulas and conclusions.
Replies regretfully that other urgent financial demands prevent JH from helping to build another church in AS's parish. Already is helping with one such church.
Explains HT's problem with the defective telescope glass. Advises caution about entering optical glass manufacturing. Urges HT to take back his will from JH's possession and entrust it to the care of a legal advisor.
Suggests reducing the number of Greenwich astronomical observations printed, but not reducing the magnetic and meteorological observations.
In Dec. 1867, JH offered small theodolite to Pierce Butler for survey of Sinai peninsula, and agreed to serve as co-trustee of Sinai Survey Fund with Henry James. Heard nothing until news of Butler's death and announcement that F. W. Holland and George Williams would take leadership and that RM was involved. Renews JH's offer, but health prevents JH from attending meetings.
Opposes parliamentary bill to adopt French metric system. Explains weaknesses of system.
About arrangements for JH's return home, together with information about paying bills and the state of JH's finances.
Comments on a number of mathematical matters, on a book on positivism, and increased sunspot activity.
Hopes HF and his wife can join the Herschels for lunch with [P. F.] Robertson at Collingwood. Gives information on transportation.
Relation of British imperial units of weight to their 'geometrical synonyms.'
Relation of imperial measures of capacity to their 'geometrical synonyms.'
Attempts to clear up a misstatement made before the Society by J. C. Dyer concerning JH's views in regard to optics, especially in relation to the luminiferous ether.