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Includes an incomplete letter from [Luke Howard?] dated 18 June 1835 (item 1), "Representation of a Committee appointed by the British Association assembled at Dublin, August 1835" (item 4), "Temperature observed at Woodbine Hall, in the County of Norfolk, at different periods of a Solar Eclipse, on May 15, 1836" (item 5); draft report on Mr Herapath's experiment (item 7); a fair copy[?] of "Sequel of the Researches upon the Measure of Temperatures & upon the Laws of the commication of heat by M. M. Dulong and Petit, Second Part" (item 9); instructions for taking readings [in the Dolcoath mine?] (item 10); notes "On the change of action in an Iron-ship's compasses from a stroke of lightning" (item 13); a notebook entitled "Experiments on Elastic Balls" (item 14); three mechanical copies of a sheet headed "Atomic Symbols" (items 17-19); and printed "Notice of a species of Seal apparently new to the British Shores" by W. B. Clarke, 14 Aug. 1847 (item 22).

St James's Place - JWL has received a letter from Mr. Children [John G. Children?] desiring a report from the President 'upon some schemes by the well known Mr Herapath' [William Herapath?]: JWL thinks the report should be short and drawn up by WW and George Peacock. He thinks it 'would be desirable that Cavendish's experiment should be repeated, but we never could entrust such a thing to the person in question'. What seems to support the idea that gravity is not the same for all substances 'is that the inequalities of Saturn appear to require a mass of Jupiter different from that which is given by the inequalities of the little planets. There can I apprehend be no doubt that corpuscular is not a modification of the Newtonian attraction'.