Todhunter.-KEY TO CONIC SECTIONS. By C. W. BOURNE, M.A. Head Master of the College, Inverness. Crown 8vo. [In the press. A TREATISE ON THE DIFFERENTIAL CALCULUS. With numerous Examples. New Edition. Crown 8vo. IOS. 6d. A TREATISE ON THE INTEGRAL CALCULUS AND ITS APPLICATIONS. With numerous Examples. New Edition, revised and enlarged. Crown 8vo. IOS. 6d. EXAMPLES OF ANALYTICAL GEOMETRY OF THREE DIMENSIONS. New Edition, revised. Crown 8vo. 45. A TREATISE ON ANALYTICAL STATICS. New Edition, revised by Professor J. D. EVERETT, F.R.S. Crown 8vo. [In the press. A HISTORY OF THE MATHEMATICAL THEORY OF PROBABILITY, from the time of Pascal to that of Laplace. 8vo. 18s. A HISTORY OF THE MATHEMATICAL THEORIES OF ATTRACTION, AND THE FIGURE OF THE EARTH, from the time of Newton to that of Laplace. 2 vols. 8vo. 245. AN ELEMENTARY TREATISE ON LAPLACE'S, LAME'S, AND BESSEL'S FUNCTIONS. Crown 8vo. IOS. 6. (See also under Arithmetic and Mensuration, Algebra, and Trigonometry.) Wilson (J. M.).—SOLID GEOMETRY AND CONIC SECTIONS. With Appendices on Transversals and Harmonic Division. For the Use of Schools. By Rev. J. M. WILSON, M. A. Head Master of Clifton College. New Edition. Extra fcap. 8vo. 3s. 6d. Woolwich Mathematical Papers, for Admission into the Royal Military Academy, Woolwich, 1880-1884 inclusive. Crown 8vo. 3s. 6d. Wolstenholme.-MATHEMATICAL PROBLEMS, on Subjects included in the First and Second Divisions of the Schedule of subjects for the Cambridge Mathematical Tripos Examination. Devised and arranged by JOSEPH WOLSTENHOLME, D.Sc., late Fellow of Christ's College, sometime Fellow of St. John's College, and Professor of Mathematics in the Royal Indian Engineering College. New Edition, greatly enlarged. 8vo. 18s. EXAMPLES FOR PRACTICE IN THE USE OF SEVENFIGURE LOGARITHMS. By the same Author. [In preparation. d 2 SCIENCE. (1) Natural Philosophy, (2) Astronomy, (3) Chemistry, (4) Biology, (5) Medicine, (6) Anthropology, (7) Physical Geography and Geology, (8) Agriculture. NATURAL PHILOSOPHY. Airy.—Works by Sir G. B. AIRY, K.C.B., formerly AstronomerRoyal. ON SOUND AND ATMOSPHERIC VIBRATIONS. With the Mathematical Elements of Music. Designed for the Use of Students in the University. Second Edition, revised and enlarged. Crown 8vo A TREATISE ON MAGNETISM. Designed for the Use of Students in the University. Crown 8vo. 9s. 6d. GRAVITATION: an Elementary Explanation of the Principal Per turbations in the Solar System. Second Edition. Crown 8vo. 7s. 6d. Alexander (T.).—ELEMENTARY APPLIED MECHANICS. Being the simpler and more practical Cases of Stress and Strain wrought out individually from first principles by means of Elementary Mathematics. By T. ALEXANDER, C.E., Professor of Civil Engineering in the Imperial College of Engineering, Tokei, Japan. Crown 8vo. Part I. 4s. 6d. Alexander Thomson. ELEMENTARY APPLIED MECHANICS. BY THOMAS ALEXANDER, C.E., Professor of Engineering in the Imperial College of Engineering, Tokei, Japan; and ARTHUR WATSON THOMSON, C.E., B.Sc., Professor of Engineering at the Royal College, Cirencester. Part II. TRANSVERSE STRESS; upwards of 150 Diagrams, and 200 Examples carefully worked out; new and complete method for finding, at every point of a beam, the amount of the greatest bending moment and shearing force during the transit of any set of loads fixed relatively to one another-.g., the wheels of a locomotive; continuous beams, &c., &c. Crown 8vo. IUS. 6d. Ball (R. S.).—EXPERIMENTAL MECHANICS. A Course of SCIENCE OF WEIGHING AND Clausius.-MECHANICAL THEORY OF HEAT. By R. CLAUSIUS. Translated by WALTER R. BROWNE, M.A., late Fellow of Trinity College, Cambridge. Crown 8vo. IOS. 6d. Cotterill.-APPLIED MECHANICS: an Elementary General Introduction to the Theory of Structures and Machines. By JAMES H. 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 8vo. Cumming.-AN INTRODUCTION TO THE THEORY OF ELECTRICITY. By LINNEUS CUMMING, M.A.,_one_of_the Masters of Rugby School. With Illustrations. Crown 8vo. 8s. 6d. 18s. Daniell.-A TEXT-BOOK OF THE PRINCIPLES OF PHYSICS. By ALFRED DANIELL, M.A., LL.B., D.Sc., F.R.S. E., late Lecturer on Physics in the School of Medicine, Edinburgh. With Illustrations. Second Edition. Revised and Enlarged. Medium 8vo. 21S. Day.-ELECTRIC LIGHT ARITHMETIC. 25. By R. E. DAY, M.A., Evening Lecturer in Experimental Physics at King's College, London. Pott 8vo. Everett.—UNITS AND PHYSICAL CONSTANTS. By J. D. EVERETT, M.A., D.C.L, F.R.S., F.R.S. E., Professor of Natural Philosophy, Queen's College, Belfast. Second Edition. Extra fcap. 8vo. 5s. Gray.-ABSOLUTE MEASUREMENTS IN ELECTRICITY AND MAGNETISM. By ANDREW GRAY, M. A., F.R.S. E., Professor of Physics in the University College of North Wales. Crown 8vo. [New Edition in the press. Grove.-A DICTIONARY OF MUSIC AND MUSICIANS. (A.D. 1450-1886). By Eminent Writers, English and Foreign. Edited by Sir GEORGE GROVE, D.C.L., Director of the Royal College of Music, &c. Demy 8vo. Vol. II. IMPROPERIA to Vols. I., II., and III. Price 21s. each. "Dr. Grove's Dictionary will be a boon to every intelligent lover of music."— SATURDAY REVIEW. Huxley.-INTRODUCTORY PRIMER OF SCIENCE. By T. H. HUXLEY, F.R.S., &c. 18mo. IS. Ibbetson,-THE MATHEMATICAL THEORY OF PER FECTLY ELASTIC SOLIDS, with a Short Account of Viscous Jones.-EXAMPLES IN PHYSICS. By D. E. JONES, B.Sc. Lecturer in Physics in University College, Aberystwyth. Fcap. 8vo. [In preparation. Kempe.-HOW TO DRAW A STRAIGHT LINE; a Lecture on Linkages. By A. B. KEMPE. With Illustrations. Crown 8vo. Is. 6d. (Nature Series.) Kennedy. THE MECHANICS OF MACHINERY. By A. B. Macfarlane,-PHYSICAL ARITHMETIC. By ALEXANDER MACFARLANE, D.Sc., Examiner in Mathematics in the University of Edinburgh. Crown 8vo. 7s. 6d. Macgregor.-KINEMATICS AND DYNAMICS. An Elementary Treatise. By J. G. MACGREGOR, M. A., Professor of Physics in Dalhousie College, Halifax, Nova Scotia. With Illustrations. Crown 8vo. [In the press. Mayer.-SOUND: a Series of Simple, Entertaining, and Inexpensive Experiments in the Phenomena of Sound, for the Use of Students of every age. By A. M. MAYER, Professor of Physics in the Stevens Institute of Technology, &c. With numerous Illustrations. Crown 8vo. 3s. 6d. (Nature Series.) Mayer and Barnard.—LIGHT: a Series of Simple, Entertaining, and Inexpensive Experiments in the Phenomena of Light, for the Use of Students of every age. By A. M. MAYER and C. BARNARD. With numerous Illustrations. Crown 8vo. 2s. 6d. (Nature Series.) Newton.-PRINCIPIA. Edited by Professor Sir W. THOMSON and Professor BLACKBURNE. 4to, cloth. 31s. 6d. THE FIRST THREE SECTIONS OF NEWTON'S PRIN- Parkinson.-A TREATISE ON OPTICS. By S. PARKINSON, D.D., F.R.S., Tutor and Prælector of St. John's College, Cambridge. Fourth Edition, revised and enlarged. Crown 8vo. 10s. 6d. Perry. STEAM. AN ELEMENTARY TREATISE. By JOHN PERRY, C. E., Whitworth Scholar, Fellow of the Chemical Society, Professor of Mechanical Engineering and Applied Mechanics at the Technical College, Finsbury. With numerous Woodcuts and Numerical Examples and Exercises. 18mo. 4s. 6d. Ramsay. EXPERIMENTAL PROOFS OF CHEMICAL THEORY FOR BEGINNERS. BY WILLIAM Ramsay, Ph.D., Professor of Chemistry in University College, Bristol. Pott 8vo. 2s. 6d. 21S. Rayleigh. THE THEORY OF SOUND. BY LORD RAYLEIGH, Medium Stewart (Balfour).-Works by BALFOUR STEWART, F.R.S., Professor of Natural Philosophy in the Owens College, Victoria University, Manchester. PRIMER OF PHYSICS. With numerous Illustrations. New Edition, with Questions. 18mo. IS. (Science Primers.) LESSONS IN ELEMENTARY PHYSICS. With numerous Illustrations and Chromolitho of the Spectra of the Sun, Stars, and Nebulæ. New Edition. Fcap. 8vo. 4s. 6d. QUESTIONS ON BALFOUR STEWART'S ELEMENTARY LESSONS IN PHYSICS. By Prof. THOMAS H. CORE, Owens College, Manchester. Fcap. 8vo. 25. |