Thanks JH for advice on the pursuit of astronomy, especially concerning the importance of mathematics. Desires to know astronomy not just as a 'pleasurable companion' but as a 'bosom friend.'
Showing 101–120 of 231 items
Thanks JH for advice on the pursuit of astronomy, especially concerning the importance of mathematics. Desires to know astronomy not just as a 'pleasurable companion' but as a 'bosom friend.'
Requests JH's reflections on the deceased Wilhelm Struve. Discusses making of telescope object glass. Continues work on the optical tables.
Printing History of the Mathematical Theory of Probability. Inquires about a probability calculation of Wilhelm Struve's in JH's Outlines Astr.
Announces a meeting of the Committee of Management for the Hawkhurst National School.
Praises JH's Iliad. Asks R.S.L. for funds to cover expenses incurred by spherical observations. Details information to be included in optical tables.
Sends, at the request of William Thomson, articles from North British Review on the topic of energy.
Asks for information on William Herschel.
Discusses work on biographies of scientific men.
Questions dates in William Herschel's observations. Wishes JH luck on completing translation of Iliad.
Studies sidereal chromatics. Asks if William Herschel recorded colors of Beta Cygni in a 1779 observation.
Asks for JH's advice on astronomy as a profession.
Asks JH for information on the Beaufoy Clock owned by R.A.S., which is now missing. Requests JH to read R.A.S. Annual Report.
Will distribute copies of a JH paper.
Forwards letter concerning 'solar bright particles' by W. R. Dawes. Inquires if diagonal solar eyepiece used in JH's solar spectrum observations.
Richard Hodgson claims to have invented the diagonal solar eyepiece despite JH's description of it in Cape Results.
Compares W. L. Newman's and CP's calculations of optical coefficients to those in JH's work. Sends JH formulae and tables for calculating telescopic lens thickness and shape in relation to the dimensions of the telescope. Wishes JH luck on Iliad.
Thanks JH for solar observations. Discusses 'willow leaves' observations made at Greenwich Observatory after following JH's suggestions for solar eyepiece.
Thanks JH for reading R.A.S. records. G. P. Bond will not receive R.A.S. medal. The Beaufoy Clock is recovered.
Richard Hodgson pursues claim to invention of the diagonal solar eyepiece while claiming that JH disclaimed the invention.
Compares JH's equation for lens curvature with that of C. F. Gauss.