Practical Treatise on Mineral Oils and their By-Products. By I. I. Redwood. 76 illus., 336 pp., 8vo. (1897.) 15s.
Silico-Calcareous Sandstones, or Building Stones from Quartz, Sand and Lime. By E. Stoffler. 5 plates, 8vo, sewed. (1901.) 4s. net.
Proceedings of the Fifth Congress, International Association for Testing Materials. English edition. 189 illus., 549 pp., 8vo. (1910.) Paper, 15s. net.; cloth, 18s. net.
MATHEMATICS
Imaginary Quantities. By M. Argand. Translated by Prof. Hardy. 18mo, boards. (New York.) 2s. net.
Text-book of Practical Solid Geometry. By E. H. de V. Atkinson. Revised by Major B. R. Ward, R.E. Second edition, 17 plates, 134 pp., 8vo. (1901.) 7s. 6d.
Quick and Easy Methods of Calculating, and the Theory and Use of the Slide Rule. By R. G. Blaine. Fourth edition, 6 illus., xii + 152 pp., 16mo. (1912.) 2s. 6d. net.
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