TABLE OF CONTENTS, 



NUMBER I.— JULY. 



Page 



Gbserrallons on Sir W. Congreve*s Report on Gas Light Establishments. 



By M. Ricardo, Esq 1 



Essays on the Construction of Sea Harbours. By Mr. Longmire {conti- 

 nued).....,.,,...,* "13 



On the Temperature of Mines. By M. P. Moyle, Esq 15 



On the Transition Formation of Sweden. By Dr. Forchhammer l6 



On the Presence of Muriatic Acid in the Air of the Atmosphere. From 



several papers by Hermstadt, Vogel, Pfaff, &c 25 



An improved Method of making Coffee. By James Smithson, Esq. FRS. 80 

 On Ultramarine, and the Methods by which its Purity may be ascertained. 



By R. Phillips, FRS. L. and E. FLS si 



On the Geology of Devon and Cornwall. By the Rev. J. J. Conybeare, 



MGS. {continued) , , . . , , S5 



On the Crystalline Forms of Artificial Salts. By H. J. Biooke^ Esq. 



FRS. {continued) , ...*.......•... 38 



Astronomical Observations. By Col. Beaufoy, FRS -,.«... 43 



On the slow Combustion of Tallow, Fixed Oils, and Wax. By Mr. C. 



J. B.Williams ...., , 44 



Analytical Account of the Transactions of the Royal Society of Cornwall, 



Vol. II. 1822. (concluded)..,,,,.,^ 45 



of Capt. Franklin's Narrative of a Journey to the 



Shores of the Polar Sea, in 18 19, 182Q, 1821, and 1822. {concluded) . , 54 



Proceedings of the Royal Society 61 



— ~... I . Astronomical Society 66 



Medico-Botanical Society of London ....«...•• 67 



Letter from Mr. Faraday respecting his Historical Sketch of Electromag- 



netism , ...^ 67 



Diurnal Variation of the Magnetic Needle 68 



Frauds and Imperfections in Paper-making 68 



Boiling Spring of Milo » ..., '68 



Crystals formed in Solution of Cyanogen 68 



Preparation of Iodide of Potassium. 69 



Butter . . 69 



Carbonate of Magnesia in the Urinary Calculi of Herbivorous Animals... 70 



Safety of Steam Engines 70 



On the Phosphates of Lead 71 



