Telephone Construction, Methods and Cost. By C. Mayer. With Appendices on the cost of materials and labour by J. C. Slippy. 103 illus., 284 pp., crown 8vo. (New York, 1908.) 12s. 6d. net.

Practical Electrics: a Universal Handybook on Every Day Electrical Matters. Seventh edition, 126 illus., 135 pp., 8vo. (S. & C. Series, No. 13.) (New York, 1902.) 1s. 6d. net.

Wiring Houses for the Electric Light. By N. H. Schneider. 40 illus., 85 pp., crown 8vo. (S. & C. Series, No. 25.) (New York, 1911.) 1s. 6d. net.

Induction Coils. By N. H. Schneider. Second edition, 79 illus., 285 pp., crown 8vo. (New York, 1901.) 4s. 6d. net.

How to Install Electric Bells, Annunciators and Alarms. By N. H. Schneider. 59 illus., 63 pp., crown 8vo. (S. & C. Series, No. 2.) (New York, 1905.) 1s. 6d. net.

Modern Primary Batteries, their construction, use and maintenance. By N. H. Schneider. 54 illus., 94 pp., crown 8vo. (S. & C. Series, No. 1.) (New York, 1905.) 1s. 6d. net.

Practical Engineers' Handbook on the Care and Management of Electric Power Plants. By N. H. Schneider. 203 illus., 274 pp., crown 8vo. (New York, 1906.) 5s. net.

Electrical Circuits and Diagrams, illustrated and explained. By N. H. Schneider. 8vo. (S. & C. Series, Nos. 3 and 4.) (New York.)

No. 3, Part 1. Second edition. 217 illus., 72 pp. (New York, 1914.) 1s. 6d. net.

No. 4, Part 2. 73 pp. (1909.) 1s. 6d. net.