Key to Reed's Handbook. 7s. 6d. net.

Reed's Marine Boilers. Third edition, 79 illus., 258 pp., crown 8vo. (1905.) 4s. 6d. net.

Reed's Useful Hints to Sea-going Engineers. Fourth edition, 8 plates, 50 illus., 312 pp., crown 8vo. (1903.) 3s. 6d. net.

How to Build a Three-horse Power Launch Engine. By E. W. Roberts. 14 plates, 66 pp., folio. (New York, 1901). 10s. 6d. net.

MATERIALS

Practical Treatise on the Strength of Materials. By T. Box. Fourth edition, 27 plates, 536 pp., 8vo. (1902.) 12s. 6d. net.

Solid Bitumens. By S. F. Peckham. 23 illus., 324 pp., 8vo. (New York, 1909.) £1 1s. net.

Lubricants, Oils and Greases. By I. I. Redwood. 3 plates, ix + 54 pp., 8vo. (1898.) 6s. 6d. net.

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.