Natural Rock Asphalts and Bitumens. Their Geology, History, Properties and Industrial Application. Arthur Danby, Chemist and Public Consultant on Rock Asphalt and Bitumen. Crown 8vo. 244 + ix pages. 8/6 net.
Contents.—Nomenclature and Definitions. Geology of Bitumen and Rock Asphalt. Appearance and Physical Structure. History and Ancient Use. Modern Exploitation of Rock Asphalt. Sources of Rock Asphalt and Bitumen. American Deposits of Bitumen. Extraction and Preparation of Rock Asphalt. Tests and Analyses. Physical Properties of Rock Asphalt. The Carrying Out of Rock Asphalt Work, and of Rock Asphalt Mastic Work. Macadam Roads. Other Uses of Bitumen.
Water, its Purification and Use in the Industries. W. W. Christie, M.Am.S.M.E., M.Am.S.C.E. 230 pages. 79 Illustrations. 12/6 net.
Time and Clocks. A Description of Ancient and Modern Methods of Measuring Time. H. H. Cunynghame, M.A., C.B. Crown 8vo. 3/6 net.
Structural Geology. C. K. Leith. 169 + viii pages. 68 Illustrations. Demy 8vo. 8/6 net.
Seasonal Trades. Arnold Freeman, B.A., and Sidney Webb. With a Bibliography of each trade. 7/6 net.
Industrial Engineering: Its Present Position and Post-War Outlook. F. W. Lanchester, M.Inst.C.E. Crown 8vo. Paper, 1/- net.
The Limitations of Science. Louis T. More, Ph.D., Professor in the University of Cincinnati. Crown 8vo. 6/6 net.
Contents.—Science as a Symbol and a Law. The Metaphysical Tendencies of Modern Physics. Descartes and his Influence on Recent Science. The Scientific Method. The Classical and the New Mechanics. Scepticism and Idolatry in Science. Science as the Arbiter of Ethics. Index.