_A Practical Treatise on the Manufacture of Starch, Glucose, Starch-Sugar, and Dextrine_, based on 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: Machinery for Prospecting, Excavating, Hauling, and Hoisting -- Ventilation -- Pumping -- Treatment of Mineral Products, including Gold and Silver, Copper, Tin, and Lead, Iron, Coal, Sulphur, China Clay, Brick Earth, etc. _Tables for Setting out Curves for Railways, Canals, Roads, etc._, varying from a radius of five chains to three miles. By A. KENNEDY and R. W. HACKWOOD. _Illustrated_, 32mo, cloth, 2_s._ 6_d._ _The Science and Art of the Manufacture of Portland Cement_, with observations on some of its constructive applications. _With 66 illustrations._ By HENRY REID, C.E., Author of ‘A Practical Treatise on Concrete,’ etc., etc. 8vo, cloth, 18_s._ _The Draughtsman’s Handbook of Plan and Map Drawing_; including instructions for the preparation of Engineering, Architectural, and Mechanical Drawings. _With numerous illustrations in the text, and 33 plates (15 printed in colours)._ By G. G. ANDRÉ, F.G.S., Assoc. Inst. C.E. 4to, cloth, 9_s._ CONTENTS: The Drawing Office and its Furnishings -- Geometrical Problems -- Lines, Dots, and their Combinations -- Colours, Shading, Lettering, Bordering, and North Points -- Scales -- Plotting -- Civil Engineers’ and Surveyors’ Plans -- Map Drawing -- Mechanical and Architectural Drawing -- Copying and Reducing Trigonometrical Formulæ, etc., etc. _The Boiler-maker’s and Iron Ship-builder’s Companion_, comprising a series of original and carefully calculated tables, of the utmost utility to persons interested in the iron trades. By JAMES FODEN, author of ‘Mechanical Tables,’ etc. Second edition revised, _with illustrations_, crown 8vo, cloth, 5_s._ _Rock Blasting_: a Practical Treatise on the means employed in Blasting Rocks for Industrial Purposes. By G. G. ANDRÉ, F.G.S., Assoc. Inst. C.E. _With 56 illustrations and 12 plates_, 8vo, cloth, 10_s._ 6_d._ _Surcharged and different Forms of Retaining Walls._ By J. S. TATE. _Illustrated_, 8vo, sewed, 2_s._