There may be a delay in supplying the copy of her book on fishes as she has to wait for a sufficient number of subscribers.
There may be a delay in supplying the copy of her book on fishes as she has to wait for a sufficient number of subscribers.
Has not heard from Thomas Young about the reduction of the Parramatta Observations. James Dunlop will not carry out this work; best to leave it to the one named. Will be coming to London soon as the New South Wales Bill comes up, so will call on JH.
Needs more money to proceed with Charles Babbage's calculating machine.
No summary available.
Board of Longitude will accomplish nothing by meeting before T. M. Brisbane comes to town, but TY suggests informal discussion, either at TY's or Henry Kater's.
No summary available.
Sending the Memoires of the Académie.
Caroline and Catherine Darwin were at the Forest a few days last week and Susan Darwin comes the next day. Mentions other relatives, friends, and acquaintances.
Henry Kater not well [enough to travel] and requests committee meet at Kater's house. TY urges JH to verify W. H. Wollaston's measurement of refraction before republishing JH's essay. Diagrams Christiaan Huygens's principle of refraction. TY is making forms of aplanatic lenses.
No summary available.
Hopes JH will stay for Sunday dinner at TY's before JH visits Dr. Litten. If so, please invite T. M. Brisbane and Francis Baily to join them. Writes formula TY discovered for discontinuous spectra. TY can now communicate with H. W. M. Olbers and T. J. Seebeck via H. C. Schumacher.
His feelings on hearing of his being elected to the Lucasian professorship at Cambridge. Regarding Joseph Clement and the work on his machine.
Encourages JH's efforts in writing a treatise on sound. Asks JH's advice on a system of mineralogical classification that WW, as Cambridge's new professor of mineralogy, had drawn up.
Thanks for his generous letter and enclosures.
No summary available.
Conveys the best thanks from the directors of the Encyclopaedia Metropolitana for the liberal settlement over his article 'Light.' He will receive a fine paper copy of the encyclopaedia in due course.
Thanks for JH having been elected a Corresponding Associate of the Prussian Royal Academy of Sciences.
No summary available.
Recently received telescope from the optician. Some adjustments are necessary. [Robert] Blair has a similar idea regarding telescopes. Asks JH to mention his idea to the Astronomical Society.
Health of JH's mother. Recommends History of George Godfrey. Asks if Waterloo, recently lost, was ship that 'C. White sailed in.' Gift for Wesleys. Letter from JH's aunt. Declining many invitations in order to continue star observations. Remembrances to the Grahames.