15 OCTOBER 1904, Page 23

Smoke Prevention and Fuel Economy. (Based on the German Work

of E. Schmatolla.) By Wm. H. Booth and John B. C. Kershaw. (A. Constable and Co. 6s. net.)—A reviewer, writing in London, especially after the autumn quarter has begun, is bound to regard this book with sympathetic interest. It is naturally of too technical a kind to notice in detail. It must suffice, therefore, to say that it is divided into three parts. In the first the present methods of heating are discussed, and their defects and faults, causing as they do waste of fuel, and at the same time polluting the atmosphere, pointed out. The second explains the more rational methods that have been proposed, and, to a certain extent, carried into practice. The third gives abstracts of patents (English, German, and American), fuel analyses, and miscellaneous matter.