No. 17.-WATER AND WATER SUPPLY By PROF. W. H. CORFIELD, M. A., of the University College, London. No. 18.-SEWERAGE AND SEWAGE UTILIZATION. BY PROF. W. H. CORFIELD, M. A., of the University College, Lon don. No. 19.-STRENGTH OF BEAMS UNDER TRANSVERSE LOADS. BY PROF. W. ALLEN, Author of Theory of Arches.' With Illustrations. 66 No. 20.-BRIDGE AND TUNNEL CENTRES. By JOHN B. MCMASTERS, C. E. With Illustrations. No. 21.-SAFETY VALVES. By RICHARD H. BUEL, C. E. With Illustrations. No. 22.-HIGH MASONRY DAMS. By JOHN B. MCMASTERS, C. E. With Illustrations. No. 23.-THE FATIGUE OF METALS UNDER REPEATED STRAINS, with various Tables of Results of Experiments. From the German of PROF. LUDWIG SPANGENBERG. With a Preface by S. H. SHREVE, A. M. With Illustrations. No. 24.-A PRACTICAL TREATISE ON THE TEETH OF WHEELS, with the Theory of the Use of Robinson's Odontograph. 3y S. W. ROBINSON, Prof. of Mechanical Engineering. Illinois Industrial University. No. 25.-THEORY AND CALCULATIONS OF CONTINUOUS BRIDGES. BY MANSFIELD MERRIMAN, C. E. With Illustra tions. No. 26.-PRACTICAL TREATISE ON THE PROPERTIES OF CONTINUOUS BRIDGES. BY CHARLES BENDER, C. E. No. 27.-ON BOILER INCRUSTATION AND CORROSION.. By F. J. Rowan. |