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.
Symbolic Algebra, or the Algebra of Algebraic Numbers. By W. Cain. 12 illus., 131 pp., 18mo, boards. (New York, 1884.) 2s. net.
Nautical Astronomy. By J. H. Colvin. 127 pp., crown 8vo. (1901.) 2s. 6d. net.
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. Fifth ed., 24 illus., 122 pp., 18mo, boards. (New York, 1912.) 2s. net.
Elementary Treatise on the Calculus for Engineering Students. By J. Graham. Fourth edition, 116 illus., xii + 355 pp., cr. 8vo. (1914.) 5s. net.
Manual of the Slide Rule. By F. A. Halsey. Fourth edition, 31 illus., 84 pp., 18mo, boards. (New York, 1907.) 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.