American Journal of Mathematics, vol. xvii. No. 4 (Baltimore October).—On the deformation of thin elastic wires, by A. B Basset. In the author's previous paper (vol. xvi.) on the deformation of thin elastic plates and shells, whilst commending the novelty, power and elegance of the geometrical investigation employed in Mr. Love's treatise on elasticity, he impugned the treatment of the physical portion of the subject. It is on the same ground of defective treatment that Mr. Basset considers that a further exposition on the theory of wires is needed, and this is what is furnished in the present paper. A useful table of contents precedes the text.—Investigations in the lunar theory by Prof. E. W. Brown, is a memoir to which reference has already been made in our columns (No. 1352, p. 533).—Th closing paper is by Otto Staude, —Ueber den Sinn der Windung in den Singulären Puncten einer Raumcurve.”