NUMBER I..JULY.
Page
Observations on Sir W. Congreve's Report on Gas Light Establishments.
By M. Ricardo, Esq. ........
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........ 16
On the Presence of Muriatic Acid in the Air of the Atmosphere, From
several papers by Hermstadt, Vogel, Pfaff, &c.....
An improved Method of making Coffee. By James Smithson, Esq. FRS. 30
On Ultramarine, and the Methods by which its Purity may be ascertained.
By R. Phillips, FRS. L. and E. FLS.....
On the Geology of Devon and Cornwall. By the Rev. J. J. Cony beare,
MGS. (continued)..
85
On the Crystalline Forms of Artificial Salts. By H. J. Brooke, 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 1819, 1820, 1821, and 1822. (concluded).. 54
Proceedings of the Royal Society
61
Astronomical Society....
Medico-Botanical Society of London.....
67
Letter from Mr. Faraday respecting his Historical Sketch of Electromag-
netism.
Diurnal Variation of the Magnetic Needle.
Frauds and Imperfections in Paper-making
68
Boiling Spring of Milo.
Crystals formed in Solution of Cyanogen
68
Preparation of Iodide of Potassium..
69
Butter i...
69
Carbonate of Magnesia in the Urinary Calculi of Herbivorous Animals... 70
Safety of Steam Engines.....
70
On the Phosphates of Lead.
71