_Aid Book to Engineering Enterprise Abroad._ By EWING MATHESON, M. Inst. C.E. The book treats of Public Works and Engineering Enterprises in their inception and preliminary arrangement; of the different modes in which money is provided for their accomplishment; and of the economical and technical considerations by which success or failure is determined. The information necessary to the designs of Engineers is classified, as are also those particulars by which Contractors may estimate the cost of works, and Capitalists the probabilities of profit. _Illustrated_, 2 vols., 8vo, 12_s._ 6_d._ each. _The Essential Elements of Practical Mechanics; based on the Principle of Work_, designed for Engineering Students. By Oliver Byrne formerly Professor of Mathematics, College for Civil Engineers. Third edition, _with 148 wood engravings_, post 8vo, cloth, 7_s._ 6_d._ CONTENTS: Chap. I. How Work is Measured by a Unit, both with and without reference to a Unit of Time--Chap. 2. The Work of Living Agents, the Influence of Friction, and introduces one of the most beautiful Laws of Motion--Chap. 3. The principles expounded in the first and second chapters are applied to the Motion of Bodies--Chap. 4. The Transmission of Work by simple Machines--Chap. 5. Useful Propositions and Rules. _The Practical Millwright’s and Engineer’s Ready Reckoner_; or Tables for finding the diameter and power of cog-wheels, diameter, weight, and power of shafts, diameter and strength of bolts, etc. By Thomas Dixon. Fourth edition, 12mo, cloth, 3_s._ _Breweries and Maltings_: their Arrangement, Construction, Machinery, and Plant. By G. Scamell, F.R.I.B.A. Second edition, revised, enlarged, and partly rewritten By F. Colyer, M.I.C.E., M.I.M.E. _With 20 plates_, 8vo, cloth, 18_s._ _A Practical Treatise on the Manufacture of Starch, Glucose, Starch-Sugar, and Dextrine_, based 011 the German of L. Von Wagner, Professor in the Royal Technical School, Buda Pesth, and other authorities. By Julius Frankel; edited by Robert Hutter, proprietor of the Philadelphia Starch Works. _With 58 illustrations_, 344 pp., 8vo, cloth, 18_s._ _A Practical Treatise on Mill-gearing, Wheels, Shafts, Riggers, etc._; for the use of Engineers. By Thomas Box. Third edition, _with 11 plates_. Crown 8vo, cloth, 7_s._ 6_d._ _Mining Machinery_: a Descriptive Treatise on the Machinery, Tools, and other Appliances used in Mining. By G. G. André, F.G.S., Assoc. Inst. C.E., Mem. of the Society of Engineers. Royal 4to, uniform with the Author’s Treatise on Coal Mining, containing _182 plates_, accurately drawn to scale, with descriptive text, in 2 vols., cloth, 3_l._ 12_s._ CONTENTS: