32 MACMILLAN'S EDUCATIONAL CATALOGUE. Carll.— A TREATISE ON THE CALCULUS OF VARIA- TIONS. Arranged with the purpose of Introducing, as well as Illustrating, its Principles to the Reader by means of Problems, and Designed to present in all Important Particulars a Complete View of the Present State of the Science. By Lewis Buffktt Carll, A.M. Demy 8vo. 2is. Cheyne.— AN ELEMENTARY TREATISE ON THE PLAN- ETARY THEORY. By C. H. II. Cheyne, M.A., F.R.A.S. With a Collection of Problems. Third Edition. Edited by Rev. A. Freeman, M.A., F.R.A.S. Crown 8vo. 7^. 6d. Christie.— A COLLECTION OF ELEMENTARY TEST- QUESTIONS IN PURE AND MIXED MATHEMATICS; with Answers and Appendices on Synthetic Division, and on the Solution of Numerical Equations by Horner's Method. By James R. Christie, PR.S., Royal Military Academy, Woolwich. Crown 8vo. 8s. 6d. Clausius.— MECHANICAL THEORY OF HEAT. By R. Clausius. Translated by Walter R. Browne, M.A., late Fellow of Trinity College, Cambridge. Crown 8vo. los. 6i/. Clifford. — THE ELEMENTS OF.DYNAMIC. An Introduction t.) the Study of Motion and Resit ia Solid and Fluid Bodies. By W. • K. Clifford, F.R.S., late Prp^lor of Applied Mathematics and Mechanicsat University College, London. Part I. — KINEMATIC. Crown 8vo. Book^-»-III. "js. 6d. ; Book IV. and Appendix 6^. Cockshott and "^Walters. — geometrical CONICS. An Elementaiy Treatise. Drawn up in accordance with the Syllabus issued by the Society for the Improvement of Geometrical Teaching. By A. Cockshott, M.A., formerly Fellow and Assistant-Tutor of Trinity College, Cambridge, and Assistant- Master at Eton; and Rev. F. B. Walters, M.A., 1-ellow of Queens' College, Cambridge, and Principal of King William's College, Isle of Man. With Diagrams. Crown 8vo. Cotterill. — applied mechanics: an Element.iry General Introduction to the Theory of Structures and Machines. By James II. Cotterill, F.R.S., Associate Member of the Council of the Institution of Naval Architects, Associate Member of the Institution of Civil Engineers, Professor of Applied Mechanics in the Royal Naval College, Greenwich. Medium Svo. i8j ELEMENTARY MANUAL OF APPLIED MECHANICS. By the same Author. Crown 8vo. [/« /rc/arcidon. Day (R. E.) —ELECTRIC LIGHT ARITHMETIC. By R. E. Day, M.A., Evening Lecturer in Experimental Physics at King's College, London. Pott Svo. 2s. Day:— PROPERTIES OF CONIC SECTIONS PROVED GEOMETRICALLY. Part I. The Ellipse with an ample collection of Problems. By the Rev. H. G. Day, M.A., formerly Fellow of St. John's College, Cambridge. Crown Svo. 3i. 6(/.
