This series of articles on treatment arouses no enthusiasm in the reviewer. The discussion is superficial, full of outworn "practical" advice and burdened with complicated, old-fashioned and obviously impotent prescriptions. The reviewer parted company with the views expressed in the first section on influenza, where the statement is made that "a free current of air is probably the most important single point in the whole treatment." The advice to give a vaccine of pneumococci, streptococci and influenza bacilli in the treatment of lobar pneumonia and the reasons in favor of this procedure are out of accord with sound practice; and so it goes throughout the book. Better discussions can be found in any reputable textbook.