Requests the return of his manuscript paper on double stars so that he may prepare his presentation to the next meeting of the Astronomical Society.
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Requests the return of his manuscript paper on double stars so that he may prepare his presentation to the next meeting of the Astronomical Society.
Comments about AD's work in mathematical functions, and then refers to JH's reductions and other astronomical matters, including the need for reform of stellar nomenclature.
Thanks AD for having pointed out an error in one of JH's papers.
Returns manuscript and corrected proofs of one of JH's papers on double stars, with the rest of the paper going to Francis Baily.
Wants to make a new musical instrument on the principle of resonance; JH also suggests some improvements in the construction of the organ.
Asks a whole series of silly riddles, and JH complains of not having heard from AD.
Has received a copy of JH's paper on double stars, but is confined to bed by a severe attack of rheumatism, so is not sure when he can finish the corrections.
Asks what AD knows about the Andersonian Institution in Glasgow, which JH's son Alexander is considering as a place of employment. JH then deals with a problem in probability theory, and concludes the letter with a riddle.
Arrangements related to JH's going to the Cape.
Thanks AD for a correction in one of JH's writings; tries to explain the partial echo that occurs when blowing across the end of an open pipe.
Thanks AD for his theorems; comments on the value of such abstract speculations.
Thanks AD for the corrections to JH's writing on astronomy; congratulates AD on his book on differential calculus.
Wants to set up a benefit club; for mutual insurance of artisans, etc., and is asking AD for actuarial information.
Questions about actuarial information in AD's 1844-1-30.
On poor attendance at R.A.S. dinner, and on the results of unrestricted population growth.
Details of printing the policy for the benefit society.
More details of the benefit society.
More details of the benefit society.
More details of the benefit society.
Discussion of actuarial tables for the benefit society.