TIBBYBA

MEM AOBK

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.................

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

Blowpipe....

......

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..

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

Page

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.

888

50

60

63

63

64

65

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

Pyroxylic and Pyroacetic Spirits ..........

Argillaceous Iron Ore....

Aberthaw Limestone.

Composition of Tourmaline.

Petalite..

New Localities of American Minerals

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

Improvement in Clocks......

69

72

72

72

73

73

75

76

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

New Scientific Books..

New Patents....

Mr. Howard's Meteorological Journal.

NUMBER 11.-AUGUST.

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