Describing itself as "a collection of electrical engineering. notes, rule fables and data" this well-known annual isa recurring satisfaction to those interested in. electrical work lof all kinds, The book is neat and handy, well-printed and illustrated with "clear "di Tu addition to generat particular attention has id in this Bist edition to certain aspects of power generation and distribution, two branches in which substantial progress has been made, Conse~ quently new information is provided Jon phase sequence, symmetrical components, leakage protection, distance protection, and the protection of motors, 'The traction section "has been brought up to date and there Jare some new particulars regarding certain kinds of meters, A: calendar, diary, and the usual' mathematical Jand other tables are included,
Text read from the printed page and cleaned; old type leaves the occasional error.