This small book presents very concisely the most used methods of clinical pathology, bacteriology, and blood chemistry. It is composed of 148 pages, and the author has divided it into 18 chapters. The methods described are those in common use, most of them having been subjected to long and critical tests. The tests are described in simplified terms, and it has the added advantages of illustrations. The book should be of the greatest value to those who wish to perform some of the most frequently used laboratory methods which are described by the author.