Information on a Mr. Atkinson. Remarks on dispersion of rays in glass.
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Information on a Mr. Atkinson. Remarks on dispersion of rays in glass.
Further regarding parcels of books sent to G. S. G. Santini of Padova. Details and comments on telescopes used for observations.
Has a micrometer under construction and gives details. Pietro Prandi has published a second memoir on mercury covered with sulfuric acid.
Comments on articles recently published on microscopy.
Preparing to give a lecture at the R.S.L., and writes seeking some information. Comments on some work of G. A. Plana and P. S. Laplace. [Much of this letter is illegible.]
Has been to the observatory. New comet discovered. Has met P. S. Laplace. Does he know of any tables of logarithms to 10,000?
Has just returned from collecting information on machines. Regarding the Lucasian professorship at Cambridge. Has met a clockmaker who is able to work on his machine.
Would like to spend Christmas with him. Does he want a Newfoundland puppy?
Regarding Mr. Moreau and his certificate. Recent happenings at the R.S.L. Has been pheasant shooting.
Thanks for his valuable communications. His theory regarding the method of determining the difference of parallax is ingenious. Regarding the difference in observations of certain stars between Dublin and Greenwich. Returns G. A. A. Plana's letter and comments on this. Has not yet printed his paper on fixed stars.
Thanks for the loan of his paper on the parallax. Regarding Wilhelm Struve's paper.
Is sending his paper on the aberration so that it can be laid before the Board of Longitude. Also sending new table for the measurement of heights by means of the barometer. Regarding the distribution of the Memoirs to Associates.
Thanks for instruments and books. Death of Prof. Giuseppe Piazzi. Returns instruments for repair. Books have not reached him. Sends first volume of one of his own works.
Has received the gift of books for which he is grateful. They have been placed in the library.
Previous engagement prevents WW witnessing experiment of A. M. Ampère tomorrow. Waits for JH's report. Hopes to see JH at [Georges] Cuvier's tomorrow.
Wanted [JH] to become Lucasian Professor of Mathematics, but electors favor one of Heads. This will also operate against Charles Babbage.
Restriction to reside constantly [at Cambridge] may deter Charles Babbage from position of Lucasian Professor.
Errors in equinoctial time calculated by John Pond. Suggests limiting decimal places in value of equinoctial time to reflect this uncertainty. Making error uniform will make it awkward to alter future almanacs.
Resolved puzzle about sidereal year, which needs better definition. Error between true and nominal positions prevents TY adopting 'equinoctial time' for chronology investigations.
J. J. Littrow's paper in F. X. von Zach's April [Correspondence astronomique, géologique, hydrographique et statistique] is only 'a new hash' of [F. W.] Bessel and no improvement.