=MACHINE CONSTRUCTION AND DRAWING =(Elementary and Advanced). A Key to the Examinations of the Science and Art Department. By HENRY ADAMS, M.Inst.C.E., M.Inst.M.E., F.S.I., &c., Professor of Engineering at the City of London College. 2 vols. Crown 8vo 2s. 6d. each. --------------------- =ILLUSTRATIONS OF THE PRINCIPAL NATURAL ORDERS OF THE VEGETABLE KINGDOM.= By D. OLIVER, F.R.S., late Professor of Botany, University College, London. New Edition. 109 Plates, coloured. Royal 8vo. 16s. --------------------- =PRACTICAL PLANE AND SOLID GEOMETRY.= A Treatise containing Solutions to the Honours Questions set at the Examinations of the Science and Art Department (1887-1896) inclusive. Fully Illustrated. By T. J. EVANS and W. W. F. PULLEN, Wh.Sc., A.M.I.C.E., South-West London Polytechnic Institute. Demy 8vo. 9s. --------------------- =KEY TO EXAMINATIONS OF SCIENCE AND ART DEPARTMENT.= Subject III.—BUILDING CONSTRUCTION. By HENRY ADAMS, M.Inst.C.E., M.Inst.M.E., &c., Professor of Engineering at the City of London College. Crown 8vo. 4s. --------------------- =PRACTICAL PLANE AND SOLID GEOMETRY.= A Key to the Examinations of the Science and Art Department. By HENRY ANGEL, Lecturer on Geometry at the Birkbeck Institute, Woolwich Polytechnic, &c. Gold Medallist. Crown 8vo. 3s. 6d. --------------------- =MECHANICAL ENGINEERS’ POCKET-BOOK.= A Reference Book of Rules, Tables, Data, and Formulæ, for the Use of Engineers, Mechanics, and Students. By WILLIAM KENT, A.M., M.E., Consulting Engineer. 1,100 pages. 12mo, morocco flap. 21s. net. --------------------- =CIVIL ENGINEERS’ POCKET-BOOK= of Mensuration, Trigonometry, Surveying, Hydraulics, Hydrostatics, Instruments and their adjustments, Strength of Materials, Masonry, Principles of Wooden and Iron Roof and Bridge Trusses, Stone Bridges and Culverts, Trestles, Pillars, Suspension Bridges, Dams, Railroads, Turnouts, Turning Platforms, Water Stations, Cost of Earthwork, Foundations, Retaining-Walls, &c. In addition to which the elucidation of certain important Principles of Construction is made in a more simple manner than heretofore. By J. C. TRAUTWINE, C.E. 12mo, morocco flaps, gilt edges. Seventeenth edition, 47th thousand. Revised and enlarged, with new Illustrations, by J. C. TRAUTWINE, Junr., C.E. 21s. net. --------------------- =THE MATERIALS OF CONSTRUCTION.= By J. B. JOHNSON. Large 8vo. 800 pages. 650 Illustrations, 11 Plates, and Complete Index. 25s. net. --------------------- =THE MECHANICAL ENGINEERING OF POWER PLANTS.= By Professor FREDERICK R. HUTTON, Columbia University. 8vo. 21s. net. ---------------------