The Practical Sugar Planter; a complete account of the cultivation and manufacture of the sugar-cane, according to the latest and most improved processes, describing and comparing the different systems pursued in the East and West Indies, and the Straits of Malacca, and the relative expenses and advantages attendant upon each, being the result of sixteen years' experience of a sugar planter in those countries, by Leonard Wray, Esq., _with numerous illustrations_, 8vo, cloth 10 6 =Short Logarithms.= Short Logarithmic and other Tables, intended to facilitate Practical Calculation, and for solving Arithmetical Problems in class, by Professor W. C. Unwin, 8vo, cloth 2 0 =Sulphuric Acid.= The Chemistry of Sulphuric Acid Manufacture, by Henry Arthur Smith, _cuts_, crown 8vo, cloth 4 6 =Surveying.= The Principles and Practice of Engineering, Trigonometrical, Subterraneous, and Marine Surveying, by Charles Bourne, C.E., third edition, _numerous plates and woodcuts_, 8vo, cloth 5 0 =Surveying.= A Practical Treatise on the Science of Land and Engineering Surveying, Levelling, Estimating Quantities, etc., with a general description of the several Instruments required for Surveying, Levelling, Plotting, etc., by H. S. Merrett, _41 fine plates, with illustrations and tables_, royal 8vo, cloth, second edition 12 6 =Table of Logarithms.= Table of Logarithms of the Natural Numbers, from 1 to 108,000, by Charles Babbage, Esq., M.A., stereotyped edition, royal 8vo, cloth 7 6 =Tables of Squares and Cubes.= Barlow's Tables of Squares, Cubes, Square Roots, Cube Roots, Reciprocals of all Integer Numbers up to 10,000, post 8vo, cloth 6 0 =Teeth of Wheels.= Camus (M.) Treatise on the Teeth of Wheels, demonstrating the best forms which can be given to them for the purposes of Machinery, such as Mill-work and Clock-work, and the art of finding their numbers, translated from the French, third edition, carefully revised and enlarged, with details of the present practice of Millwrights, Engine Makers, and other Machinists, by Isaac Hawkins, _illustrated by 18 plates_, 8vo, cloth 5 0 =Telegraphy.= Journal of the Society of Telegraph Engineers, including original Communications on Telegraphy and Electrical Science, edited by Major Frank Bolton and G. E. Preece, Parts I. to XII., demy 8vo, sewed, _with wood engravings_, each 5 0 _To be continued quarterly._ =Torpedo Warfare.=