Is publishing a work on rare atmospheric phenomena. Lists names of persons who have assisted with observations. Would like to inscribe the book to JH.
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Is publishing a work on rare atmospheric phenomena. Lists names of persons who have assisted with observations. Would like to inscribe the book to JH.
Observed Comet Mauvais. Is grateful for JH's intervention on Observatory matters. Extra Meridian Instruments defective. Continues observations of variables. F. E. Wilmot's land survey cancelled. Magnetic survey progressing. Mary Maclear ailing.
Not acquainted with proposal by A. T. Kupffer. Replies to queries by B.A.A.S. committee regarding continuation of magnetic and meteorological observatories. Expects self-registering instruments to supersede human observers soon.
GP prefers to meet on Saturday at Somerset House, rather than on Friday as JH proposed.
Accepts JH's invitation to attend the meeting [see JH's 1844-11-1], and offers JH accommodation for the night.
Sends actinometer observations of 1841 and 1842, which he will publish. Asks JH to look them over and make comments.
Discusses ES's experiments with convertible and travelling pendulums. Asks how 'für vaterländische Cultur' is to be translated for the list of societies.
Pleased that JH agrees on removal of tail pieces and moveable weights from pendulums. Discusses pendulum experiments in air and vacuums.
Discusses the best pendulum models inside and outside a vacuum apparatus. ES will be given credit for improving the manipulation of pendulums. Makes several other comments regarding pendulums.
Will attend to JH's wishes regarding the correspondence. Discusses the buoyancy correction for particular types of pendulums. Asks if JH has received the magnetic results from Geneva.
Regrets that he cannot offer JH the information he needs regarding the stature of service-men, but suggests places for further searching. Shares observations about relationships between dew point and barometer.
[John] Lee has a silhouette of Caroline Herschel as a young lady; would JH like it? Discusses whether JH should include Francis Baily's relationship to his family in JH's memoir on Baily. Names those to whom he plans to give copies of Baily's portrait.
Clarifies a point raised in an earlier letter about JH being the proper person to deal with the relatives of Francis Baily. On the mishandling of arrangements for Baily's portrait by the R.A.S. On [W. S.] Stratford's poor leadership in this matter.
Regrets his delay in not returning F. W. Bessel's letter. Observations arising from this letter.
JH has forgotten to name the day of his arrival. Can he let Elizabeth Baily know? Thinks he did the right thing in staying at Tavistock Place.
Apologizes for blunder in account. Encloses £1.
Sends papers and new book on 'Chemical influence of Light' by JD. Received JH's papers. Apologizes for failing to give JH discovery credit. Notes on light interference.
Sorry that WW cannot go to London to meet [with the magnetic committee]. Regrets missing JH at York B.A.A.S. meeting.
Outlines the recent activities connected with the magnetic survey of the Cape and comments on the progress. Gives details of difficulties under which Thomas Maclear works at the Cape Observatory.
Has received the Memoir of Francis Baily and JH's note. Will instruct the printer to follow JH's wishes. Query regarding the printing of the catalogue of Baily's works.