Prof. von Noorden's handling of the subject of nephritis in the following pages is bold, original, and somewhat iconoclastic. He rides roughshod over mosscovered tradition. Nothing is sacred to him but indubitably demonstrated truth. He has a way, too, of confirming or refuting alleged truths for himself taking nothing for granted. This is the proper course in the determination of scientific questions.

The author has by actual experiments exploded the myth so long accepted that the light meats are safer than the dark ones in various diseases including nephritis. He has questioned and gone far toward disproving the theory that milk is the best diet in all cases of nephritis. Indeed he has demonstrated that in many cases, certainly, the ingestion of fluids in this disease needs to be restricted rather than encouraged. In various other respects he has established for the treatment of the different forms of Bright's Disease, rules founded upon a critical scientific study of numerous cases, instead of the familiar directions handed down from an earlier period when clinical observations were less exact and pathologic theories more nebulous than at'present.

It is refreshing and invigorating to receive instruction from one so sure of his ground as Prof. von Noor-den. He prescribes a therapy the effectiveness of which he has proved repeatedly, and other clinicians may safely follow his lead.

As in the case of the preceding volume, Dr. A. C. Croftan has done the translating in a very creditable and satisfactory manner. It is not often that a foreign author has his thoughts rendered into English by one who is not only familiar with both languages, but also exceptionally well acquainted with the subjects under discussion.

Boardman Reed.

1833 Chestnut Street, Philadelphia.