3 DECEMBER 1910, Page 66

The Young Electrician. By Hammond Hall. (Methuen and Co. 5s.)—The

noticeable features of this introduction to electricity are its lucid style and its occasionally happy illustrations. The dryasdust scientific man is usually somewhat jealous of graphic explanations ; but when we are teaching beginners, and those who are past the age when ideas are quickly grasped, we gain time by using common facts as illustrations. The book is eminently readable, and the chapters on batteries, electrotyping, and the telephone most interesting and instructive; so too are the pages dealing with electric installations and the measuring instruments in use. The diagrams and photographs are many and excellent.