ERRATA IN VOL. IV. Page 420, line 42, for and portions of the gneiss, read not portions of the gneiss. 421, 421, 34, a granite through gneiss, read or granite through gneiss. sea coast, read east coast. interrupted, read intermixed. pinnæ, read donax. There is an error in the diagram, Plate XXVII., which, referring only to the line that is drawn through the centre, may be corrected without a new plate. The small o at the centre should be a large one, and the consecutive figures under the units and above them should refer to the circles which they touch. Thus 1 is right, but the following is 1, which should be 1, and so on. 1 Page 218, morning observation, May, 1814, for 24° 12′ 49′′, read 24° 13′ 12′′; difference for+0' 47", read 1' 10". Page 218, noon observation, Nov. difference for 0' 13", read + 0′ 13′′. 218, morning observation, Jan. 1815, for 24° 16′ 26′′, read 24° 16′ 46′′. 229, line 4, for Macleugh, read Macleay. - 1, -or Changelica, read Archangelica. NUMBER XXV.-JANUARY, 1815. Sketch of the latest Improvements in Physical Sciences. By Dr. Thomson Experiments on pure Nickel, its Magnetic Quality, and its Deportment when united to other Bodies. By W. A. Lampadius..... Magnetical Observations at Hackney Wick. By Col. Beaufoy.. On the Conversion of Cast-Iron Pipes into a Substance bearing re- Proceedings of the Royal Society, Nov. 24, 30, Dec. 8, 15, and 22, 1814 68 Notices of Lectures Linnæan Society, Dec. 6 and 20, 1814 Meteorological Table and Observations, Nov. 4 to Dec. 3, 1814 ..ibid. ibid. .ibid. .ibid. 78 .ibid. ibid. ..ibid. 79 Experiments to determine the Definite Proportions in which the Ele- ments of Organic Nature are combined. By Dr. Berzelius, continued 93 A Memoir on Iodine. By M. Gay-Lussac.. Observations on the Sap of the Vine. By Dr. Prout On the Use of the Cerebellum, on the Spinal Marrow, and on Respira- On Galvanism as a Solvent of Urinary Calculi. By Mr. Wm. Stark.... 114 Answer to Mr. R. Phillips's Animadversions on Mr. Hume Notices respecting the Old Silver Mine in Linlithgowshire. By Dr. An Address to those Chemists who wish to examine the Laws of Che- mical Proportions, and the Theory of Chemistry in general. By Dr. Geological Society, March 4 to Dec. 2, 1814, inclusive ibid. New Expedition into Africa ....... Communication between the Blind and the Deaf and Dumb. Mr. Huston on the Solar Spectrum:. Biographical Account of Dr. David Rittenhouse. By Dr. Thomson.... 161 Experiments in determining the Draught of Carriages. By R. L. Edge- Experiments to determine the Definite Proportions in which the Elements of Organic Nature are combined. By Dr. Berzelius, continued ...... 174 Observations on some Points connected with the Atomic Theory. By Dr. On Deepening, Cleaning, and Removing, Obstructions in Harbours. By On the Uses of the, Dorsal Vessel. By M. Marcel de Serres, continued 191 On the Orthoceratites of Scotland. By Dr. Fleming Memoir on Iodine. By M. Gay-Lussac, continued. Annual Meteorological Table for Sidmouth. By Dr. Clarke. Astronomical and Magnetical Observations. By Col. Beaufoy Critical Analysis of Capt. Flinders's Voyage to Terra Australis Proceedings of the Royal Society, Jan. 26, Feb. 2, 9, and 16.. On Dew. By Dr. Wells Experiments on the Definite Proportions of the Elements of Organic Na- An Essay on Rents in the Earth. By Mr. Longmire, continued Register of the Weather, and Table of Variations, at Plymouth, for the First Six Months of 1814.. Astronomical and Magnetical Observations. By Col. Beaufoy.. Mr. Phillips's Reply to Mr. Hume's Answer to his Animadversions.. Memoir on Iodine. By M. Gay-Lussac, continued..... Critical Analysis of Dr. Berzelius's System of Mineralogy. Proceedings of the Royal Society, Feb. 23, March 2, 9, and 16 Reply to Queries respecting Gas Light, Conveyance of Steam by Pipes, and smallest Angle at which Objects are visible.. Meteorological Table at Kinfauns Castle for 1814.. Royal Medical Society of Edinburgh Mr. Lockhart on Imaginary Cube Roots.. Mr. Walker on the Use of the Cerebellum and Spinal Marrow Biographical Account of Dr. Joseph Black. By Dr. Thomson 321 On the Doctrine of Fluxions. By A. Christison, Esq.... 327 On the Cerebellum. By Dr. Leach On the Effect produced by a Mass of Ice on a Thermometer. By Mr. On the Uses of the Dorsal Vessel. By M. Marcel de Serres, continued.. 369 Analytical Account of Dr. Prichard's Researches into the Physical His- A Memoir on Iodine. By M. Gay-Lussac, continued Analysis of the Excrements of the Boa Constrictor. By Dr. Prout On the Colouring Matter, or Ink, ejected by the Cuttle Fish. By the Refutation of Mr. Walker's Claim to the Discovery of the Uses of the Cerebellum with further Observations on Respiration. By Dr. Cross 420 Experiments showing that in Hepatitis the Urine contains no Urea. By Reply to Mr. Phillips's Animadversions. By Mr. Hume Remarks on the Phenomena of Galvanism.... Defence of the Opinion that all Numbers have Four Imaginary Cube Astronomical and Magnetical Observations. By Col. Beaufoy... Variations of the Barometer and Thermometer at 284 XXXIV. Machine for the Manufacture of Potatoe Flour ... 35F |