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TABLE OF CONTENTS.
NUMBER I.-JULY.
Biographical Account of Assessor John Gottlieb Gahn
Col. Beaufoy's Astronomical Observations......
Mr. Weaver on the Older Red Sandstone Formation.
Mr. South's Corrections in Right Ascension of 37 Principal Stars.
M. Bonsdorff on the Chemical Composition of Red Silver Ore.......
23
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.
M. Bequerel on the Electro-motive Actions produced by the Contact of
Metals with Liquids.....
......
39
42
M. Pfaff on a deoxidating Property of the Vapour of Water
Mr. Woodward on the Transmission of Electricity through Tubes of Water 48
Mr. Smithson on Mr. Penn's Theory concerning the Formation of the
Kirkdale Cave
Analytical Account of the Rev. J. Topham's Epitome of Chemistry.
Proceedings of the Royal Society...
Linnean Society
....
Astronomical Society..
Geological Society..
Nature of the free Acid ejected from the Human Stomach in Dyspepsia.. 68
75
76
On the Cause of the Rotatory Motion of Camphor in Water.
Improvement in Clocks..
Method of cleaning Gold Trinkets, and preserving engraved Copper-plates 76
Mr. Powell's Remarks on Solar Light and Heat (continued).
Sir H. Davy on the Corrosion of Copper Sheeting by Sea Water.
Mr. Davies on the Application of Mathematics to Chemical Analysis.... 99