HIGHER MATHEMATICS. Airy. — Works by Sir G.B. Airy, K.C.B., formerly Astronomer-Royal. ELEMENTARY TREATISE ON PARTIAL DIFFERENTIAL EQUATIONS. Designed for the Use of Students in the Univer^ sities. With Diagrams. Second Edition. Crown 8vo, 5^. 6d. ON THE ALGEBRAICAL AND NUMERICAL THEORY OF ERRORS OF OBSERVATIONS AND THE COMBI- NATION OF OBSERVATIONS. Second Edition, revised. Crown 8vo. 6i. 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 Elemen- tary Mathematics. By T. Alexander, C.E., Professor of Civil Engineering in the Imperial College of Engineering, Tokei, Japan. Part I. Crown 8vo. 4^. 6d. Alexander and Thomson. — elementary applied MECHANICS. By Thomas Ale.xander, 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. Trans- verse Stress. Crown 8vo. los. 6d. Army Preliminary Examination, 1882-1887, Speci- mens of Papers set at the. With answers to the Mathematical Questions. Subjects : Arithmetic, Algebra, Euclid, Geometrical Drawing, Geography, French, English Dictation. Cr. 8vo. 31. 6d. Ball (W. W. R.).— A short ACCOUNT OF THE HIS- TORY OF MATHEMATICS. By W. W. Rouse Ball, Fellow and Assistant Tutor of Trinity College, Cambridge, and of the Inner Temple, Barrister-at-Law. Crown 8vo. los. 6d. Ball (Sir R. S.).— EXPERIMENTAL MECHANICS. A Course of Lectures delivered at the Royal College of Science for Ireland. By SiR Robert Stawell Ball, LL.D., F.R.S., Astronomer- Royal of Ireland. New Edition. With Illustrations. Crown 8vo. 6s. Boole.— THE CALCULUS OF FINITE DIFFERENCES. By G. Boole, D.C.L., F.R.S., late Professor of Mathematics in the Queen's University, Ireland. Third Edition, revised by J. F. MouLTON. Crown 8vo. los. 6d. Cambridge Senate-House Problems and Riders, with Solutions : — l875_PROBLEMS AND RIDERS. By A. G. Greenhill, M.A. Crown 8vo. 8s. 6d. 1878— SOLUTIONS OF SENATE-HOUSE PROBLEMS. By the Mathematical Moderators and Examiners. Edited by J. W. L. Glaisher, M.A., Fellow of Trinity College, Cambridge. 12S.
