This is a worth-while and an unusual book. It is worth-while because it contains a great deal of valuable information; it is unusual because it consists of 35 sections, written by 34 different men. The subject of asthma has become so complicated and presents so many different facets that no one man can now be an expert on every phase of it. A book such as this, while it is bound to be uneven in content, gains greatly in that each subject is presented by an expert on that particular subject.
The contributions range from an extremely practical and well-written chapter on the "Office Treatment of Bronchial Asthma," by Rogers, to a complicated and exhaustive discussion of "The Chemical Nature of the Dust Allergen," by Rimington. There is an excellent chapter on "The Physiology of Respiration," by Hoff and Breckenridge, and a most complete chapter, of 44 pages, on aerosol