Requesting information of the dispersion of rays in Crown and Flint glass.
Showing 1–20 of 21 items
Requesting information of the dispersion of rays in Crown and Flint glass.
Description of theory of a telescope, though not practical yet.
Concerning calculations for the parallax of Mars.
Asking for introductions to certain men of science in Paris. Revision of his views on his figure of the earth, and casting doubt on Edward Sabine's pendulum observations.
Sending his paper on the 'Figure of the Earth.' Description of work at Greenwich Observatory. Remarks on projected expedition to Falmouth and Ashbourne.
Instructions regarding the printing of his paper the 'Figure of the Earth' in the transactions. Details of the disappointing expedition to Falmouth.
Thanking him for his letters of introduction to Paris. Remarks on one of GA's papers; one of his calculations incorrect.
Information on a Mr. Atkinson. Remarks on dispersion of rays in glass.
Asking for the procedure for bringing business before the Board of Longitude. Has found solar tables incorrect.
Requesting permission to borrow Christiaan Huygens's telescope. Postscript of further remarks on the solar tables.
Giving his reasons for wanting to borrow Christiaan Huygens's telescope. Postscript on recent observations with a prism.
Questions concerning a vacant professorship at Dublin Observatory.
Proposed visit to Dublin and letters of introduction from JH.
Observations on the position of professorship at Dublin, conditions of service, income, etc.
No news of Dublin. Remarks on a series of experiments. Observations on JH's paper on the Nautical Almanac.
Further observations on JH's paper on the Nautical Almanac.
Requesting a copy of JH's paper on 'Object planes.' Encloses with this letter his own paper on 'Eyepieces.' Requesting that Greenwich Observations be sent to the University Library, Cambridge.
Asking JH to express his willingness to becoming Lucasian Professor at Cambridge University.
Asking JH's opinion on how he should print his catalogue of observations of transits. Requests information on any forthcoming comets.
Asking JH to get in touch with Charles Babbage. Thanking him for his observations on his catalogue of stars and transits.