The Elements of the Science of Nutrition.

Among those familiar with its predecessor, this second edition of Lusk's work will find a ready acceptance. The new volume differs from the other mainly in its consideration of facts which have been discovered during the past three years, and although there has been some increase in size, the book retains its compactness and character. Even more than before one is impressed by the fact that in this work we have to do with an unusual and significant type of American medical writing. Its character may be gleaned from the following excerpts from the preface, which are a true index of what follows in the text: ``The aim of the book is to review the scientific substratum on which rests the knowledge of nutrition, both in health and in disease.'' Throughout no statement has been made without endeavoring to give proof that it is true. ``The wide-spread