There have been several biographies of Faraday, most of them now out of print; but the life, work, methods, character, and aims of the man--who was "beyond all question the greatest scientific expositor of his time"--can not be kept too constantly or too long before the minds of students. Welcome, therefore, is the easily accessible and convenient volume _Michael Faraday: His Life and Work_, which has been prepared by Prof. _Sylvanus P. Thompson_, and is published by the Macmillan Company in their Century Science Series ($1.25). The work by which Faraday contributed so much to the advancement of knowledge is made prominent, and is illustrated largely, due regard being had to the limitations of the size of the book, with citations from his own journal and copies of his drawings. In _American Indians_, a book second in order but first in date of publication of a series of "Ethno-Geographic Readers" (D. C. Heath & Co., Boston), Prof. _Frederick Starr_ has succeeded in conveying a large amount of information about our aborigines in a very small space, and has done it in a clear style and a very satisfactory manner. The book is intended as a reading book for boys and girls in school, to whose tastes and capacity it seems well adapted; but the author will be pleased if it also interests older readers, and hopes it may enlarge their sympathy with our native Americans. Besides the accounts of the tribal divisions, general customs, manner of life, houses, and institutions--which when they are counted up are found to be quite numerous--it has articles on the sign language, medicine men and secret societies, the mounds and their builders, George Catlin and his work, the cliff-dwellings and ruins of the Southwest, the tribes of the Northwest coast, matters of religious and mythological significance, the Aztecs, the Mayas, and the ruined cities of Yucatan and Central America. The revision, for the fifth edition, of _H. Newell Martin's The Human Body_ (Henry Holt & Co., New York, $1.20) was undertaken by Prof. _George Wills Fitz_ with the idea of bringing the book into accord with the late developments of physiology, of simplifying the treatment of some parts while expanding that of others, and of giving additional illustrations. Every effort has been made to avoid injuring those features of the author's work which have contributed to making the book so favorably known. The changes in the first nine chapters are largely verbal; but considerable alterations and additions have been made in some of the succeeding chapters. The directions for demonstrations and experiments have been greatly enlarged and collected into an appendix. They include the new requirements in anatomy, physiology, and hygiene for admission to Harvard College and the Lawrence Scientific School.