In this work, which was crowned by the Academy, the author considers a subject, the solution of which offers more enticement to the well-wisher of the race than the gold of the Incas did to the treasure-seekers of Spain, who themselves doubtless looked upon the coveted yellow metal, however mistakenly, as a key to the happiness which all are trying to find. “Amid the noisy tumult of life, amid the dissonance that divides man from man,” remarks M. Finot, “the Science of Happiness tries to discover the divine link which binds humanity to happiness through the soul and through the union of souls.” The author considers the nature of happiness and the means of its attainment, as well as many allied questions. =33.=--=Genetic Theory of Reality.= Being the Outcome of Genetic Logic as Issuing in the Æsthetic Theory of Reality Called Pancalism. By JAMES MARK BALDWIN, Ph.D., D.Sc., LL.D., Foreign Correspondent of the Institute of France, Author of “History of Psychology,” etc. The author here states the general results of the extended studies in genetic and social science and anthropology made by him and others, and gives a critical account of the history of the interpretation of nature and man, both racial and philosophical. The book offers an _Introduction to Philosophy_ from a new point of view. It contains, also, a valuable glossary of the terms employed in these and similar discussions. =34.=--=Mosquito Control in Panama.= The Eradication of Malaria and Yellow Fever in Cuba and Panama. By J. A. LE PRINCE, C.E., A. M., Chief Sanitary Inspector, Isthmian Canal Commission, 1904-1914, and A. J. ORENSTEIN, M.D., Assistant Chief Sanitary Inspector, Isthmian Canal Commission. With an introduction by L. O. HOWARD, Ph.D., Entomologist and Chief, Bureau of Entomology, United States Department of Agriculture. 8^o. 95 illustrations. Mr. Le Prince’s books will be not only of great practical importance as a guide to future work of the same character, especially in the Tropics, but also of permanent historic value. =35.=--=The Organism as a Whole.= From a Physico-Chemical Viewpoint. By JACQUES LOEB, Author of “Comparative Physiology of the Brain.” 8^o. The author accounts for the harmonious character of the organism on a purely physico-chemical basis, without the assumption of design on the one hand, and without the formulation of too definite a theory of evolution on the other. The book contains, in addition to the text, all the necessary illustrations. * * * * * * Transcriber's note: Footnotes have been repositioned to below the paragraph of reference or below the relevant block quote. A small number of spelling anomalies were noted and these have mostly been corrected, but a few that possibly represent authentic contemporary alternatives have been left unchanged – see below. Corrections: