Revised and edited by Oliver R. Willis. A. S. Barnes & Co., N. Y. Illustrated. Pp. 220. Professor Wood's books have all been useful and popular, and the present treatise, which appeared originally as a part of the Botanist and Florist, has been, perhaps, the most useful of his writings. The matter is suited to a large class of elementary students, and the treatment is singularly clear and concise. This treatise was written more than twenty years ago, since which time both the science of botany, and methods of teaching it have been largely revolutionized. Professor Willis has separated and modernized it, and the result is a most attractive addition to our small list of good botanical text books. The chapters comprising the results of microscopical research have been entirely rewritten, and many other parts of the work have been recast; and although the book is essentially a new one, all the particular features of the original have been maintained. The little volume is admirably adapted to youth and adults who are beginning the study of botany.

The publishers have exercised great taste, making one of the most attractive text books ever issued.