Electric Arc Phenomena. E. Rasch. Translated by K. Tornberg. Demy 8vo. 52 Illustrations. 18/- net.
Contents.—General Outline of Electric Arc Phenomena. Typical Carbon Arc. Electrode Materials and their Physical Properties. Theory of Electric Discharges through Gases. Spark Discharges. Empirical Results. Voltage and Current Conditions in the Arc. Distribution of Energy in the Arc. Efficiency of Commercial Types of Arc.
Physical Laboratory Experiments for Engineering Students: Mechanics, Sound, Heat, and Light. Samuel Sheldon, Ph.D., D.Sc., and Erich Hausmann, F.E., Sc.D. Demy 8vo. 134 pages. 40 Illustrations. 7/6 net.
Radio-Active Transformations. Ernest Rutherford, F.R.S. Demy 8vo. 31/6 net.
The Theory of Ionization of Gases by Collision. John S. Townsend, M.A., F.R.S., Wykeham Professor of Physics in the University of Oxford. Crown 8vo. 4/6 net.
Contents.—Ionization by Negative Ions. Ionization by Positive Ions. Sparkling Potentials in a Uniform Electric Field. Theory of Electric Discharges in Fields of Force which are not Uniform.
The Electrical Nature of Matter and Radioactivity. H. C. Jones, Professor of Physical Chemistry in the Johns-Hopkins University. 3rd Edn. Revised and largely Rewritten. Demy 8vo. 220 pages. 8/6 net.
The Corpuscular Theory of Matter. Sir J. J. Thomson, M.A., F.R.S., D.Sc., LL.D., Ph.D., Professor of Experimental Physics, Cambridge, and Professor of Natural Philosophy at the Royal Institution, London. Demy 8vo. 7/6 net.
Radio-Activity and Geology. John Joly, M.A., Sc.D., F.R.S., Professor of Geology and Mineralogy in the University of Dublin. Crown 8vo. 10/- net.
A Text-Book of Physics. H. E. Hurst, B.A., B.Sc., Hertford College, Oxford, late Demonstrator in Physics in the University Museum, Oxford, and R. T. Lattey, M.A., Royal Naval College, Dartmouth, late Demonstrator in Physics in the University Museum, Oxford. Many Illustrations and Diagrams. Demy 8vo. 12/6 net.