Thanks for remainder of WH's essay on 'Systems of Rays.' Recalls error-ridden copy of JH's Light given to WH; sends correction. Wishes to propose WH for membership in Astronomical Society.
Thanks for remainder of WH's essay on 'Systems of Rays.' Recalls error-ridden copy of JH's Light given to WH; sends correction. Wishes to propose WH for membership in Astronomical Society.
Sending the Gold Medal awarded to CH by the Astronomical Society and also a pair of bracelets from his mother; will send the indexes later. Just erected James South's large equatorial.
JH played no role in the awarding of an Astronomical Society medal to CH. Sent to CH a few copies of JH's Light. His catalogs of double stars and nebulae are progressing well.
Regarding Joseph Clement and the work on his machine. Account of his recent excursions.
Sending DB a draft of a paper; comments on quality of a chromatic lens (that of [Charles] Tulley's telescope using Pierre Guinand's glass).
Regarding the meeting, and the papers read last Friday. Invitation to dine with him and Sir Thomas Brisbane. Regarding Brisbane's observations. Various Astronomical Society affairs.
Is glad Thomas Brisbane was in the chair at the meeting. Will be pleased to join the party on Friday. The Parramatta observations. Someone to supervise their publication. His own recent observations.
T. M. Brisbane is in town. Can JH meet him? JH's computations of definite integrals are simpler, more direct than P. S. Laplace's and more conclusive than Leonhard Euler's. Comments on W. H. F. Talbot's letters demonstrating Josef Fraunhofer's theorem.
Abandons TY's argument on Mr. Roberts's object glass. Asks JH's help in understanding A. J. Fresnel's calculations of diffraction and Josef Fraunhofer's discontinuous functions.
Board of Longitude would approve providing Lieutenant Forbes with apparatus JH suggested. Inappropriate for any member to address Admiralty separately. Payment of expenses to committee members.
Accepts invitation to WF's party on 19th, but will miss reading of Adam Sedgwick's and R. I. Murchison's paper. Chemical composition of 'Fish limestone.'
Is grateful for JH's invitation to her brother to visit him. Would like advice on a suitable mathematics tutor for her brother.
Is about to leave for England with Alphonse de Candolle. Gives news of his latest astronomical observations. Lists people he has met or hopes to meet.
Returns correspondence between [Lorenz] Spengler [(1720-1807), naturalist] and Linnaeus, along with other letters, including fragment of [Daniel] Solander letter, which Sir James [Edward] Smith had given her to look over.