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و بو هه و

TABLE OF CONTENTS.

NUMBER 1.-JULY.

Page

Observations 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., ....., 16

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. 30

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

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

81

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

MGS. (continued).

85

On the Crystalline Forms of Artificial Salts. By H. J. Brooke, Esq.

FRS. (continued) ... 6 6.........

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) .......

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.

Astronomical Society..

66

Medico-Botanical Society of London.....

67

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

netism.

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

Preparation of Iodide of Potassium.....

69

Butter ......

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

Safety of Steam Engines......

70

On the Phosphates of Lead.

71

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