*PARSHALL, H. P., and HOBART, H. M. Armature Windings of Electric Machines.* _Third Edition._ With 140 full-page Plates, 65 Tables, and 165 pages of descriptive letter-press. 4vo., cloth, 300 pp. $7.50
- *Electric Railway Engineering.* With 437 Figures and Diagrams and many Tables. 4to., cloth, 475 pp Net, $7.50 - *Electric Machine Design.* Being a revised and enlarged edition of "Electric Generators." 648 Illustrations. 4vo., half morocco, 601 pp Net, $12.50
*PATCHELL W. H. Application of Electric Power to Mines and heavy Industries.* 91 illustrations 6 1/2 x 9 1/4, cloth, 203 pp Net, 4.00
*PATTERSON, G. W. L. Wiring Calculations for Light and Power Installations.* 139 illustrations, 5 1/4 x 7 1/4. cloth, 203 pp Net, $2.00
- *Electric Mine Signalling and Installations.* Illustrated. 5 1/4 x 7 1/8, 110 pp Net, $1.50
*PERRINE, F. A. C. Conductors for Electrical Distribution: Their Manufacture and Materials the Calculation of Circuits, Pole Line Construction, Underground Working, and other Uses.* _Second Edition._ Illustrated. 8vo., cloth, 287 pp Net, $3.50
*POPE, F. L. Modern Practice of the Electric Telegraph.* A Handbook for Electricians and Operators. _Seventeenth Edition_. Illustrated. 8vo., cloth, 234 pp $1.50
*RAPHAEL, F. C. Localization of Faults in Electric Light Mains.* _Third Edition In Press_
*RASCH, E. Electric Arc Phenomena.* Translated by K. Tornberg. 52 illustrations. 5 x 7, cloth, 187pp Net, $2.00
*RAYMOND, E. B. Alternating-Current Engineering, Practically Treated.* _Third Edition, revised_. With many Figures and Diagrams. 8vo., cloth, 244 pp Net, $2.50
*REDFERN, T. B. and SAVIN, J. Bells, Indicators, Telephones, Fire and Burglar Alarms.* 85 illustrations. 4 1/2 x 6 3/4, cloth, 123 pp. (Installation Manuals Series) .50
*RICHARDSON, S. S. Magnetism and Electricity and the Principles of Electrical Measurement.* Illustrated. 12mo., cloth, 596 pp. Net, $2.00
*ROBERTS, J. Laboratory Work in Electrical Engineering—Preliminary Grade.* A series of laboratory experiments for first and second-year students in electrical engineering. Illustrated with many Diagrams. 8vo., cloth, 218 pp Net, $2.00
*ROLLINS, W. Notes on X-Light.* Printed on deckle edge Japan paper 400 pp. of text, 152 full-page plates. 8vo., cloth Net, $5.00