That a large amount of popular interest centers in the study of tree life and all subjects incidental to forestry and horticulture is evidenced by the appearance of a second book on the subject under the title of ‘Our Native Trees and How to Identify Them’ (Scribners), by Harriet L. Keeler. The volume in question takes up the trees native of northern United States east of the Rocky Mountains, together with a few well-known foreign species which have become naturalized in this region. The book opens with a key to the families of dicotyledonous species based upon leaf characters, and every species receives not only a full technical description, but also comes in for interesting comments upon habit and general ecological relations. Numerous drawings and half-tones add to the accuracy and clearness of the descriptions. It is not too much to say that the photographic reproductions surpass in beauty and presentation of detail any recent botanical publication, and the venation of leaves is shown in most instances by this method quite as well as it might be done by means of pen and ink sketches. The value of the descriptions is heightened by the inclusion of notes of economic interest. It is not unexpected that some errors should creep into the discussions on almost all phases of botany which are interspersed throughout the volume. The appearance of a new botanical dictionary is most timely, and it is fortunate that the task of its preparation should be undertaken by such a skilful bibliographer as Mr. B. D. Jackson. His ‘Glossary of Botanical Terms’ (Lippincott) contains fifteen thousand words, or three times as many as have been included in any previous work of this character. This is indicative of a most energetic pursuit of investigations in all departments of the subject, and also of a lamentable tendency to the coinage by botanists of new and unnecessary terms upon the slightest pretext. A legitimate factor in the increase of the contents of such a work consists in the inclusion of words in common use which take on a technical meaning in botany; such, for instance, as altitude, abnormal, abrupt, absolute, accidental back, etc.