In this book the author has collected more than 150 illustrations of the lungs, using most of the periodicals and textbooks available and including, as well, many from his own collection. The book is based on almost fifty years of study of the lung structure. The author uses the term "hilum" instead of "hilus." The book is magnificently produced; many of the illustrations are in colors. It includes a historical sketch, involving biographic notes of all the great investigators who specialized in a study of the lung. This is an invaluable reference work for all those who are concerned with knowledge of the lungs in any of its aspects.