Bulletin of the American Mathematical Society, vol. ii. No. 6 March 1896.—“The three great problems of antiquity considered in the light of modern mathematical research” is a review, by Miss C. A. Scott, of Prof. Klein's Festschrift for the third meeting of the Association for the Advancement of Mathematical and Scientific Teaching in the Gymnasia, entitled “Vorträge über ausgewählte Fragen der Elementargeometrie.” Of course the problems intended are the duplication of the cube, the trisection of an angle, and the quadrature of the circle. The pamphlet is divided into two parts: the first deals with algebraic numbers, the second with transcendental numbers. The analysis is very full, so that the reader gets a thoroughly good idea of Prof. Klein's work. “But while reading this brilliant exposition it is difficult to avoid cherishing a lurking regret, which is possibly very ungracious, that Klein could not himself spare time to arrange his work for publication; for though we have here in full measure the incisive thought and cultured penetration which together make even strict logic seem intuitive, yet at times we miss the minute finish and careful proportion of parts that we feel justified in expecting from him. And yet revision and consolidation might have seriously interfered with the graphic simplicity of these chapters, and left them less adapted to their special purpose.” From Miss Scott's account we are thoroughly disposed to endorse her wish that the pamphlet should be translated for the use of corresponding English associations. Why should not she undertake the task, if she has the leisure?—Prof. A. S. Chessin gives an abstract of Painlevé's Lecons sur l'intégration des équations differentielles de la Mécanique et Applications, and of his Lecons sur le Frottement.—The other articles are a geometric proof of a fundamental theorem concerning unicursal curves, by Prof. Osgood; Notes on the expression for a velocity-potential in terms of functions of Laplace and Bessel, by Prof. J. McMahon, and an additional note on divergent series by Prof. A. S. Chessin.— In the Notes we are told that the German Mathematical Society, at its meeting held at Lübeck, in September last, decided to combine in one volume the official reports of the Vienna and Lübeck meetings.—A list of papers, in addition to that given in vol. i. of the Bulletin, completes the tale of papers read at the Vienna meeting (1894), and the titles and names of authors for the Lübeck meeting are also given here.