Chemical Problems. By J. C. Foye. Fourth edition, 141 pp., 18mo, boards. (New York, 1898.) 2s. net.
Primer of the Calculus. By E. S. Gould. Second edition, 24 illus., 122 pp., 18mo, boards. (New York, 1899.) 2s. net.
Elementary Treatise on the Calculus for Engineering Students. By J. Graham. Fourth edition in the press.
Manual of the Slide Rule. By F. A. Halsey. Second edition, 31 illus., 84 pp., 18mo, boards. (New York, 1901.) 2s. net.
Reform in Chemical and Physical Calculations. By C. J. T. Hanssen. 4to. (1897.) 6s. 6d. net.
Algebra Self-Taught. By P. Higgs. Third edition, 104 pp., crown 8vo. (1903.) 2s. 6d.
A Text-book on Graphic Statics. By C. W. Malcolm. 155 illus., 316 pp., 8vo. (New York, 1909.) 12s. 6d. net.
Galvanic Circuit Investigated Mathematically. By G. S. Ohm. Translated by William Francis. 269 pp., 18mo, boards. (New York, 1891.) 2s. net.
Elementary Practical Mathematics. By M. T. Ormsby. Second edition, 128 illus., xii + 410 pp., medium 8vo. (1911.) 5s. net.