_L'Année Psychologique_[18] of M. _Alfred Binet_ and his colaborers in the Laboratory of Physiological Psychology of the Sorbonne, Paris, is now in its fourth year, and the four volumes present a compendium of the psychological studies and literature of the period they cover, the value of which will be appreciated by any one who has occasion to examine the work. The first volume was a book of 619 pages, with 33 figures; the second, of 1010 pages, 141 figures, and several plates; the third, of 825 pages, 103 figures, and numerous plates; and the present volume has 849 pages and 117 figures. The plan of all the volumes is the same; it is to present in full the labors of the laboratory, with original memoirs, and to give a condensed but adequate and classified summary of the world's literature of the year relating to the subject. The present volume contains twenty-seven original memoirs, mostly by Professor Binet and M. N. Vaschide, with others by M. B. Bourdon and Mr. A. Le Clère; about ninety reviews of books and papers, classified under sixteen heads, according as they relate to the physiology of the nervous system, the several senses, mental faculties and operations, movements, individual psychology and character, sleep, dreams, and pathological cases, and animal psychology; a bibliography, also classified, of 123 pages; and an index of authors, occupying 17 double-columned pages. * * * * * _Prof. Cyrus Thomas_ has given, in his _Introduction to the Study of North American Archæology_,[19] a brief summary of the progress in the investigation and study of the subject which has been made up to the present time. The increased activity among students, the numerous explorations made, the accumulation of data and the flood of light thrown on questions relating to prehistoric North America since the publication of the last general work on it seemed to call for such a summary. While the author's chief object is to present and arrange the data so as to afford the student some means of bringing into harmony and utilizing the facts and materials at hand, yet, in view of the impossibility of presenting a full account of the archæological remains of the continent, and discussing all the questions connected with them in a single small volume, only those considered the best representatives of the leading types and those which best illustrate the arts, customs, and culture status of the former inhabitants are referred to. The movements and remains are treated under the three heads of the Arctic, Atlantic, and Pacific divisions; the first including the works of the Eskimos, the second those of the mound builders, and the third the curious variety of works scattered along the Pacific coast, and in Mexico and Central America, rising to great elaboration in the latter countries. Theories have to be considered, though they are all still uncertain, and Professor Thomas notices the various views which have