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 CAMBRIDGE PHYSICAL SERIES.

Conduction of Electricity through Gases. By, D.Sc., LL.D., Ph.D., F.R.S., Fellow of Trinity College and Cavendish Professor of Experimental Physics. Demy 8vo. viii + 568 pp. 16s.

CONTENTS.

I. Electrical Conductivity of Gases in a normal state.

II. Properties of a Gas when in the conducting state.

III. Mathematical Theory of the Conduction of Electricity through a Gas containing Ions.

IV. Effect produced by a Magnetic Field on the Motion of the Ions.

V. Determination of the Ratio of the Charge to the Mass of an Ion.

VI. Determination of the Charge carried by the Negative Ion.

VII. On some Physical Properties of Gaseous Ions.

VIII. Ionisation by Incandescent Solids.

IX. Ionisation in Gases from Flames.

X. Ionisation by Light. Photo-Electric Effects.

XI. Ionisation by Röntgen Rays.

XII. Becquerel Rays.

XIII. Spark Discharge.

XIV. The Electric Arc.

XV. Discharge through Gases at Low Pressures.

XVI. Theory of the Discharge through Vacuum Tubes.

XVII. Cathode Rays.

XVIII. Röntgen Rays.

XIX. Properties of Moving Electrified Bodies.

Supplementary Notes.

Index.

Times.—"It is difficult to think of a single branch of the physical sciences in which these advances are not of fundamental importance. The physicist sees the relations between electricity and matter laid bare in a manner hardly hoped for hitherto The workers in the field of Science are to-day reaping an unparalleled harvest, and we may congratulate ourselves that in this field at least we more than hold our own among the nations of the world."

A Treatise on the Theory of Solution, including the Phenomena of Electrolysis. By , M.A., F.R.S., Fellow of Trinity College. Demy 8vo. x + 488 pp. 10s. net.

Athenæum.—"The choice and arrangement of the matter included are alike excellent Mr Whetham's book is probably the most complete and satisfactory treatise on the subject in any language and as such is sure to enjoy a wide popularity."

Nature.—"The treatment throughout is characterised by great clearness, especially in the physical and mathematical portions, so that the volume may be warmly recommended to students of chemistry."