AND EDUCATIONAL SERI The following are the Works already pubusnew ore (The Volumes are bound in limp cloth, except where otherwise state MATHEMATICAL INSTRUMENTS. a Treatise c:: in which their Construction, and the Methods of Testing, justing, and Using them are concisely Explained. By J. HEATHER, M.A., of the Royal Military Academy, Woolwi Original Edition. in 1 vol.. Illustrated. 1s. Ed LELAND STANFORD JB UNIVERSITY LIBRARY GIFT OF W. R. Eckart. DENUMI TID UDUMDIR, all ementary iгeatr on; with a Theory of Shadows and of Perspective, extract from the French of G. MONGE. To which is added a Descri tion of the Principles and Practice of Isometrical Projection; t whole being intended as an Introduction to the application Descriptive Geometry to various branches of the Arts. By J. HEATHER, M.A. Illustrated with 14 Plates. 2s. COMMERCIAL BOOK-KEEPING. ARITHMETIC, a Rudimentary Treatise on : with full Explanations of its Theoretical Principles, and numerous Examples for Practice. For the use of Schools and for selfInstruction. By J. R. YOUNG, late Professor of Mathematics in Belfast College. New Edition, with Index. ls. 6d. A KEY to the above, containing Solutions in full to the Exercises, together with comments, explanations, and improved processes, for the use of Teachers and unassisted Learners. By J. R. YOUNG. 1s. 6d. EQUATIONAL ARITHMETIC, applied to Questions of Interest, Annuities, Life Assurance, and General Commerce; with various Tables by which all Calculations may be greatly facilitated. By W. HIPSLEY. In two parts, 1s. each; or in one vol., 2s. ALGEBRA, the Elements of. By JAMES HADDON, M.A. With Appendix containing miscellaneous Investigations, and a Collection of Problems in various parts of Algebra. 2s. A KEY and COMPANION to the above Book, forming an extensive repository of Solved Examples and Problems in Illustration of the various expedients necessary in Algebraical operations. Especially adapted for Self-Instruction. By J. R. YOUNG. 1s. 6d. EUCLID, the Elements of: with many additional Propositions, and Explanatory Notes; to which is prefixed an Introductory Essay on Logic. By HENRY LAW, C.E. 2s. PLANE TRIGONOMETRY, the Elements of. By JAMES HANN. 1s. SPHERICAL TRIGONOMETRY, the Elements of. By JAMES HANN. Revised by CHARLES H. DOWLING, C.E. 1s. Or with the Elements of Plane Trigonometry, in one volume, 2s. MENSURATION AND MEASURING, for Students and Practical Use. With the Mensuration and Levelling of Land for the purposes of Modern Engineering. By T. BAKER, C.E. New Edition, with Corrections and Additions by E. NUGENT, C.E. Illustrated. 1s. 6d. LOGARITHMS, a Treatise on; with Mathematical Tables for facilitating Astronomical, Nautical, Trigonometrical, and Logarithmic Calculations; Tables of Natural Sines and Tangents and Natural Cosines. By HENRY LAW, C.E. Illustrated. 2s. 6d. LOCKWOOD & CO., 7, STATIONERS' HALL COURT, E.C. |