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THE

ANNALS

Of

PHILOSOPHY.

NEW SERIES.

JULY TO DECEMBER, 1824.

VOL. VIII.

AND TWENTY.FOUBTH FBOM THE COMMENCEMENT.

Sontum:

Printed by C. Baldmn, New Bridge-street;

FOR BALDWIN, CRADOCK, AND JOY,

PATERNOSTER-ROW.

1824.

TABLE OF CONTENTS.

NUMBER I.—JULY.

Pag«

Biographical Account of Assessor John Gottlieb Gahn 1

Col. Beaufoy's Astronomical Observations , 11

Mr. Weaver on the Older Red Sandstone Formation 11

Mr. South's Corrections in Right Ascension of 37 Principal Stars 23

M. Bonsdorff on the Chemical Composition of Red Silver Ore 29

Mr. Children on the Characters of some Mineral Substances before the

Blowpipe 36

MM. Ampere and Dulong on M. Rousseau's New Method of measuring

the Power of Bodies to conduct Electricity , 39

M. Bequerel on the Electro-motive Actions produced by the Contact of

Metals with Liquids ,.. 42

M. Pfaff on a deoxidating Property of the Vapour of Water 45

Mr. Woodward on the Transmission of Electricity through Tubes of Water 49

Mr. Smithson on Mr. Penn's Theory concerning the Formation of the

JGrkdale Cave 50

Analytical Account of the Rev. J. Topham's Epitome of Chemistry 60

Proceedings of the Royal Society 63

Linnean Society , 63

Astronomical Society 64

Geological Society 65

Nature of the free Acid ejected from the Human Stomach in Dyspepsia .. 68

Pyroxylic and Pyroacetic Spirits .,., 69

Argillaceous Iron Ore , 72

Aberthaw Limestone -. 72

Composition of Tourmaline 72

Petalite ,, 73

New Localities of American Minerals 73

On the Cause of the Rotatory Motion of Camphor in Water 73

Improvement in Clocks ,.... 76

Method of cleaning Gold Trinkets, and preserving engraved Copper-plates 76

New Scientific Books 77

New Patents 78

Mr. Howard's Meteorological Journal 79

NUMBER II.—AUGUST.

Mr. Powell's Remarks on Solar Light and Heat (continued) 81

Sir H. Davy on the Corrosion of Copper Sheeting by Sea Water 94

Mr. Davies on the Application of Mathematics to Chemical Analysis.... 99

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