XV 



Corrections applied to the Great Meridional Arc, extending from Lati- 

 tude 8 9' 38"-39 to Latitude 18 3' 23"-64, to reduce it to the Par- 

 liamentary 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 Lyrae. 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 im- 

 pregnate 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, communi- 

 cating 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 Expe- 

 riments 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 Hori- 

 zontal and Dipping Needles under a reduced Directive Power. By 

 Peter Barlow, Esq. F.R.S 197 



