This volume was first published in 1929 and is now issued in a cheap edition for general use. In the field of public health education, Sir William Arbuthnot Lane has been a pioneer and merits credit for his service notwithstanding his promotion of occasional departures from scientific medicine. The book deals largely with the fundamental laws controlling the operation of the human body and promotes the view that nature's method is best. Of course, one has to interpret nature's method and to realize that modern civilized man lives in conditions that in no way resemble what may be natural conditions. Unfortunately, in his health teachings Sir William Arbuthnot Lane has also concerned himself with the promotion of various proprietary foods in which his health society seems to have some commercial interest and his views must be read, therefore, with the reservations that such a connection naturally invites.