_Tables of the Principal Speeds occurring in Mechanical Engineering_, expressed in metres in a second. By P. KEERAYEFF, Chief Mechanic of the Obouchoff Steel Works, St. Petersburg; translated by SERGIUS KERN, M.E. Fcap. 8vo, sewed, 6_d._ _Girder Making and the Practice of Bridge Building in Wrought Iron_, illustrated by Examples of Bridges, Piers, and Girder Work, etc., constructed at the Skerne Iron Works, Darlington, by EDWARD HUTCHINSON, M. Inst. M.E. _With 35 plates_, demy 8vo, cloth, 10_s._ 6_d._ _Spons’ Dictionary of Engineering, Civil, Mechanical, Military, and Naval_; with technical terms in French, German, Italian, and Spanish, 3100 pp., and _nearly 8000 engravings_, in super-royal 8vo, in 8 divisions, 5_l._ 8_s._ Complete in 3 vols., cloth, 5_l._ 5_s._ Bound in a superior manner, half-morocco, top edge gilt, 3 vols., 6_l._ 12_s._ _See page 15._ _A Treatise on the Origin, Progress, Prevention, and Cure of Dry Rot in Timber_; with Remarks on the Means of Preserving Wood from Destruction by Sea-Worms, Beetles, Ants, etc. By THOMAS ALLEN BRITTON, late Surveyor to the Metropolitan Board of Works, etc., etc. _With 10 plates_, crown 8vo, cloth, 7_s._ 6_d._ _Metrical Tables._ By G. L. MOLESWORTH, M.I.C.E. 32mo, cloth, 1_s._ 6_d._ CONTENTS. General -- Linear Measures -- Square Measures -- Cubic Measures -- Measures of Capacity -- Weights -- Combinations -- Thermometers. _A Handbook of Electrical Testing._ By H. R. KEMPE, Member of the Society of Telegraph Engineers. New edition, revised and enlarged, _with 81 illustrations_. Crown 8vo, cloth, 12_s._ 6_d._ _Electro-Telegraphy._ By FREDERICK S. BEECHEY, Telegraph Engineer. A Book for Beginners. _Illustrated._ Fcap. 8vo, sewed, 6_d._ _Handrailing: by the Square Cut._ By JOHN JONES, Staircase Builder. Fourth edition, _with seven plates_, 8vo, cloth, 3_s._ 6_d._ _Handrailing: by the Square Cut._ By JOHN JONES, Staircase Builder. Part Second, _with eight plates_, 8vo, cloth, 3_s._ 6_d._ _The Gas Consumer’s Handy Book._ By WILLIAM RICHARDS, C.E. _Illustrated._ 18mo, sewed, 6_d._ _Steam Heating for Buildings_; or, Hints to Steam Fitters, being a description of Steam Heating Apparatus for Warming and Ventilating Private Houses and large Buildings; with Remarks on Steam, Water, and Air in their relation to Heating; to which are added miscellaneous Tables. By J. W. BALDWIN, Steam Heating Engineer. _With many illustrations._ Second edition, crown 8vo, cloth, 10_s._ 6_d._ _A Pocket-Book of Useful Formulæ and Memoranda for Civil and Mechanical Engineers._ By GUILFORD L. MOLESWORTH, Mem. Inst. C.E., Consulting Engineer to the Government of India for State Railways. _With numerous illustrations_, 744 pp. Twenty-first edition, revised and enlarged, 32mo, roan, 6_s._ SYNOPSIS OF CONTENTS: