Practical Treatise on Mill Gearing. By T. Box. Fifth edition, 11 plates, 128 pp., crown 8vo. (1892.) 7s. 6d.

The Mechanical Engineers’ Price Book. Edited by G. Brooks. 176 pp., pocket size (6½ in. by 3¾ in. by ½ in. thick), red leather cloth. 4s. net.

Safety Valves. By R. H. Buell. Third edition, 20 illus., 100 pp., 18mo, boards. (New York, 1898.) 2s. net.

Machine Design. By Prof. W. L. Cathcart. Part I. Fastenings. 123 illus., 291 pp., demy 8vo. (New York, 1903.) 12s. 6d. net.

Chimney Design and Theory. By W. W. Christie. Second edition, 54 illus., 192 pp., crown 8vo. (New York, 1902.) 12s. 6d. net.

Furnace Draft: its Production by Mechanical Methods. By W. W. Christie. 5 illus., 80 pp., 18mo, boards. (New York, 1906.) 2s. net.

The Stokers’ Catechism. By W. J. Connor. 63 pp., limp. (1906.) 1s. net.

Treatise on the use of Belting for the Transmission of Power. By J. H. Cooper. Fifth edition, 94 illus., 399 pp., demy 8vo. (New York, 1901.) 12s. 6d. net.

The Steam Engine considered as a Thermo-dynamic Machine. By J. H. Cotterill. Third edition, 39 diagrams, 444 pp., 8vo. (1896.) 15s.

Fireman’s Guide, a Handbook on the Care of Boilers. By K. P. Dahlstrom. Eleventh edition, fcap. 8vo. (S. & C. Series, No. 16.) (New York, 1906.) 1s. 6d. net.