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Wilson (J. M.) — continued.

SOLID GEOMETRY AND CONIC SECTIONS. With Appen­dices

on Transversals and Harmonic Division. For the use of Schools. By J. M. Wilson, M.A. Second Edition. Extra fcap.

8vo. 3s. 6d.

This work is an endeavour to introduce into schools some portions of Solid Geometry which are now very little read in England. The first twenty-one Propositions of Euclid's Eleventh Book are usually all the Solid Geometry that a boy reads till he meets with the subject again in the course of his analytical studies. And this is a matter of regret, because this part of Geometry is specially valuable and attractive. In it the atten­tion of the student is strongly called to the subject matter of the reasoning; the geometrical imagination is exercised; the methods employed in it are more ingenious than those in Plane Geometry, and have greater diffi­culties to meet; and the applications of it in practice are more varied.

Wilson (W. P.) — A TREATISE ON DYNAMICS. By

W. P. Wilson, M.A., Fellow of St. John's College, Cambridge, and Professor of Mathematics in Queen's College, Belfast. 8vo.

9s. 6d.

“This treatise supplies a great educational need” — Educational Times.

Wolstenholme. — A BOOK OF MATHEMATICAL

PROBLEMS, on Subjects included in the Cambridge Course. By Joseph Wolstenholme, Fellow of Christ's College, some­time Fellow of St John's College, and lately Lecturer in Mathe­matics

at Christ's College. Crown 8vo. cloth. 8s. 6d.

Contents: — Geometry (Euclid) — Algebra — Plane Trigonometry — Geometrical Conic Sections — Analytical Conic Sections — Theory of Equa­tions — Differential Calculus — Integral Calculus — Solid Geometry — Statics — Elementary Dynamics — Newton — Dynamics of a Point — Dynamics of a Rigid Body — Hydrostatics — Geometrical Optics — Spherical Trigonometry and Plane Astronomy, “Judicious, symmetrical, and well arranged.” — Guardian.