(1) Matematica Dilettevole e Curiosa (2) New Analytic Geometry (3) Experimental Mensuration An Elementary Text-Book of Inductive Geometry (4) Geometrical Optics (5) Problèmes d'Analyse Mathématique (6) Lecons sur l'Intégration des Equations Différentielles aux Dérivées Partielles

Abstract

(1) THIS collection of mathematical paradoxes should be of interest to a large circle of readers. It is remarkably comprehensive, occupying more than seven hundred closely printed pages, is profusely illustrated, and is published at a very reasonable price. Those who are acquainted with Mr. Rouse Ball's work will find much in these pages with which they are already familiar, but there will be very few who will not discover something that is new and surprising. In addition to the standard problems of antiquity—the squaring of the circle, the trisection of an angle, and the duplication of the cube—there are elaborate sections on arithmetic, algebra, geometry, and mechanics. There are problems on shunting, map-making, perpetual motion, trammells, constructions with limited instruments, probability, magic squares, boomerangs, draughts, chess, and many other themes of a popular character. It is, however, impossible to give any detailed account of so miscellaneous a work; enough has, perhaps, been said to show that there is abundant material to while away any number of idle hours.

(1) Matematica Dilettevole e Curiosa.

By Ing. Italo Ghersi. Pp. viii + 730. (Milano: Ulrico Hoepli, 1913.) Price 9.50 lire.

(2) New Analytic Geometry.

By Prof. P. F. Smith Prof. A. S. Gale. Pp. x + 342. (Boston and London: Ginn and Co., n.d.) Price 6s. 6d.

(3) Experimental Mensuration: An Elementary Text-Book of Inductive Geometry.

By H. Stanley Redgrove. Pp. xvii + 328. (London: W. Heinemann, 1912.) Price 2s. 6d. net.

(4) Geometrical Optics.

By A. S. Percival. Pp. vii + 132. (London: Longmans, Green and Co., 1913.) Price 4s. 6d. net.

(5) Problémes d'Analyse Mathématique.

By Prof. E. Fabry. Pp. 460. (Paris: A. Hermann et Fils, 1913.) Price 12 francs.

(6) Leçons sur l'Intégration des Equations Différentielles aux Dérivées Partielles.

By Prof. M. V. Volterra. Pp. ii + 83. (Paris: A. Hermann et Fils, 1912.) Price 6 francs.