12 LIST OF WORKS ON ELECTRICAL SCIENCE. 



WEBB, H. L. A Practical Guide to the Testing of Insulated Wires and Cables. 

 Fifth Edition. Illustrated. 1 2mo. , cloth., 1 18 pp $1 . 00 



WEEKS, R. W. The Design of Alternate-Current Transformer. New Edition 



in Press 



WEYMOUTH, F. MARTEN. Drum Armatures and Commutators. (Theory and 

 Practice.) A complete treatise on the theory and construction of drum- 

 winding, and of commutators for closed-coil armatures, together with a full 

 re'sume' of some of the principal points involved in their design, and an 

 exposition of armature reactions and sparking. Illustrated. 8vo., cloth, 

 295 pp Net, $3.00 



WILKINSON, H. D. Submarine Cable-Laying, Repairing, and Testing. Second 

 Edition, completely revised. 313 illustrations. 8vo., cloth, 264 pp.Net, $6.00 



WRIGHT, J. Testing, Fault Localization, and General Hints for Linemen. 19 

 Illustrations. 5x7, cloth, 88 pp. (Installation Manuals Series.) . Net, $0.50 



YOUNG, J. ELTON. Electrical Testing for Telegraph Engineers. Illustrated. 

 8vo., cloth, 264 pp Net, $4.00 



ZEIDLER, J. and LUSTGARTEN, J. Electric Arc Lamps. Then- principles, con- 

 struction and working. 160 Illustrations. 8vo., cloth, 200 pp. . . Net, $2.00 



A 96=page Catalog of Books on Electricity, classified by 

 subjects, will be furnished gratis, postage prepaid, on 

 application. 



