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| Corrections applied to the Great Meridional Arc, extending from Latitude 8° 9' 38"·39 to Latitude 18° 3' 23"·64, to reduce it to the Parliamentary Standard. By Lieut. Col. W. Lambton, F.R.S. | page 182 | |
| On the Changes which have taken place in the Declination of some of the principal fixed Stars. By John Pond, Esq. F.R.S. | 182 | |
| Appendix to the preceding Paper on the Changes which appear to have taken place in the Declination of some of the fixed Stars. By John Pond, Esq. F.R.S. | 183 | |
| On the Parallax of α Lyræ. By John Pond, Esq. F.R.S. | 184 | |
| Observations on the Heights of Places in the Trigonometrical Survey of Great Britain, and upon the Latitude of Arbury Hill. By B. Bevan, Esq. | 185 | |
| On some Fossil Bones discovered in Caverns in the Limestone Quarries of Oreston. By Joseph Whidbey, Esq. F.R.S. To which is added, a Description of the Bones by Mr. William Clift | 186 | |
| On the Chinese Year. By J. F. Davis, Esq. F.R.S. | 187 | |
| Experiments for ascertaining the Velocity of Sound, at Madras in the East Indies. By John Goldingham, Esq. F.R.S. | 188 | |
| On the Double Organs of Generation of the Lamprey, the Conger Eel, the common Eel, the Barnacle, and Earth Worm, which impregnate themselves; though the last, from copulating, appear mutually to impregnate one another. By Sir Everard Home, Bart. V.P.R.S. | 188 | |
| On a New Phenomenon of Electro-magnetism. By Sir Humphry Davy, Bart. P.R.S. | 189 | |
| On Fluid Chlorine. By M. Faraday | 190 | |
| On the Motions of the Eye, in illustration of the Uses of the Muscles and Nerves of the Orbit. By Charles Bell, Esq. | 190 | |
| An Account of an Apparatus on a peculiar Construction for performing Electro-magnetic Experiments. By W. H. Pepys, Esq. F.R.S. | 192 | |
| On the Condensation of several Gases into Liquids. By Mr. Faraday | 192 | |
| On the Application of Liquids formed by the Condensation of Gases as Mechanical Agents. By Sir Humphry Davy, Bart. P.R.S. | 193 | |
| On the Temperature at considerable Depths of the Caribbean Sea. By Captain Edward Sabine, F.R.S. | 193 | |
| Letter from Captain Basil Hall, R.N. to Captain Kater, communicating the Details of Experiments made by him and Mr. Henry Foster, with an Invariable Pendulum, in London; at the Galapagos Islands in the Pacific Ocean, near the Equator; at San Bias de California on the N.W. Coast of Mexico; and at Rio de Janeiro in Brazil. With an Appendix, containing the Second Series of Experiments in London, on the Return | 193 | |
| Second Part of the Paper on the Nerves of the Orbit. By Charles Bell, Esq. | 195 | |
| An Account of Experiments made with an Invariable Pendulum at New South Wales, by Major-General Sir Thomas Brisbane, K.C.B. F.R.S. | 196 | |
| Observations and Experiments on the Daily Variation of the Horizontal and Dipping Needles under a reduced Directive Power. By Peter Barlow, Esq. F.R.S. | 197 | |
