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Encloses proofs of the copy of JH's Prelim. Discourse. JH's essay is giving him great pleasure. Comments on the view of understanding physics without the use of mathematics.
Introducing a Mr. Lerebours, son of the optician at the Bureau des Longitudes, who is on a visit to England. Hopes JH has received the copy of JN's work on geometry, written in a new way.
Discusses eighteenth-century observations from Greenwich. Describes curious observations of stars in Gamma Virginis and Polaris.
Sends a method of estimating the variations in the elements of orbits during the perturbations in longitude and distance. Used it in manuscript when examining Saturn and Jupiter.
Reminds WS to select certain nebulae for 'communal observation.' Received good news from Finland. Gave [James] South the list of 36 double stars to be observed. Stars compare except result in smaller distances than JH's and South's observations.
Wishes to learn if Isabella Stewart's health has declined.
Agrees with his opinions held about the R.S.L. Is going out of town immediately; so unable to answer the queries completely. Regarding the magnetic muzzle used by needle makers.
Atkinson is in London and would JH meet them on Friday to effect the necessary business.