On a static measure for gravity.
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On a static measure for gravity.
Is going to Kashmir for a geological survey. Wonders if while he is there he can carry out any meteorological research.
Returned JH's 'original sheets of nebulae.' Kept sheets of calculations. Will write about money accounts later. Lord Palmerston's communication about Thomas Maclear's pension.
Many years ago he read a paper to the Royal Scottish Society of Arts on the merits of JH's telescope compared with that of William Parsons (3rd Earl of Rosse); this paper has never been printed. Gives details of his own optical work.
Hears that his chance of success at the R.S.L. is good. [John?] Lee will forward the certificate to JH for presentation to the R.S.L.
Glad that JH approves introducing Julian dates. Notes their use in American lunar tables. Positions of three new nebulae.
JH will be pleased with Mr. de Souza's and [Charles] Smallwood's letters. American and Havana instruments were dispatched. [Hermann] Schlagintweit has made interesting magnetic survey of India.
Is grateful for JH's letter and pamphlet. Worked on portraiture before Mr. Baird and assisted him later. Outlines the various lenses he used and made for other people. Is pleased JH has a good opinion of the work of [W. B.?] Rogers. Is he familiar with the works of [Thomas?] Dicks in astronomy?
Describes procedures, apparatus, and calculations for determining the static gravity of the earth. Thanks JH for some of his writings, and comments that JH, like Newton, has discovered the mind of the Creator and passed this on to humanity.
Asks JH's help in efforts to publish a complete edition of writings of physicist Augustin Fresnel.