Offers to participate in determining stellar parallaxes by finding the angle position of double stars. Apprises Henry Kater that he has never seen Saturn's rings separated. Includes micrometer measurements of Saturn and Jupiter.
Offers to participate in determining stellar parallaxes by finding the angle position of double stars. Apprises Henry Kater that he has never seen Saturn's rings separated. Includes micrometer measurements of Saturn and Jupiter.
Has a micrometer under construction and gives details. Pietro Prandi has published a second memoir on mercury covered with sulfuric acid.
No summary available.
Sending a paper for the R.S.L. Humphry Davy does not approve entirely of his arguments. Would be pleased if JH would glance over it and then inform Davy that he has it.
Discusses casting and construction of telescope speculae.
Will send JH some barometric observations; describes the barometers with which the observations were made.
No summary available.
Was grateful for JH's letter and detailed notes. Hopes he will attach a copy to the paper when he communicates it to the R.S.L.
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.
Send plan of furnace to TY or Michael Faraday before tomorrow's committee meeting.
No summary available.
Describes the pendulum experiments he and G. B. Airy are carrying out in Dolcoath Mine.
Kept busy by writing. Works with Teodoro Monticelli. Expects Captain [Richard] Copeland to visit.
Thanks JH for material from AS of London. Mentions 'new comet.' Informs JH of being nominated to the list of foreign members in the American Philosophical Society.
Asks for information, on behalf of JG's father, about a Cambridge man.
Talks about Josef Fraunhofer's failing health and his making of flint glass.
Reports that an accident destroyed one of the pendulums used by G. B. Airy and WW in their Dolcoath experiments. Obtained some results and believes in the general soundness of the method employed.
Instructions regarding the printing of his paper the 'Figure of the Earth' in the transactions. Details of the disappointing expedition to Falmouth.
A note to accompany one of CH's writings, together with some comments on comet sightings.
Thanking him for his letters of introduction to Paris. Remarks on one of GA's papers; one of his calculations incorrect.