Indigestion: Its Differential Diagnosis and Treatment *Two copies of this book were received for review, and were inadvertently sent to two different reviewers. As, however, our readers may like to read both reviews, we publish both.—Editor, I. M. G.

In the preface to this book the author states, " I have endeavoured to present a practical guide to the differential diagnosis and treatment of indigestion." This is a worthy aim, for it is probable that the general practitioner finds more difficulty in diagnosing the cause and directing the treatment of indigestion than he does in any other common complaint. In the popular textbooks the chapters on diseases of the stomach are perhaps the least satisfactory. They certainly do not help the student to obtain a clear idea of the many causes of dyspepsia and the relative importance of the history and symptoms as an indication for treatment. Mr. Paterson has written his book in a different style. He gives us a classification which may not be perfect, but is certainly very useful as a basis for the argument of a differential diagnosis. First place is given to indigestion secondary to causes outside the stomach. This is admirable, for the*e can be no doubt that in the majority of cases the symptoms are not due to any lesion in the stomach itself. Perhaps chronic appendicitis as