Steam Engine.

A Pocket-Book of Practical Rules for the Proportions of Modern Engines and Boilers for Land and Marine purposes, by N. P. Burgh, sixth edition, revised, with Appendix, royal 321110, roan 4 6

Details of High-Pressure Engine, Beam Engine, Condensing, Marine Screw-Engines, Oscillating Engines, Valves, etc., Land and Marine Boilers, Proportions of Engines produced by the rules, Proportions of Boilers, etc.

Strength of Beams.

New Formulas for the Loads and Deflections of Solid Beams and Girders, by William Donaldson, M.A., Assoc. Inst. C.E., 8vo, cloth 4 6

Strength of Cement.

Experiments on the Strength of Cement, chiefly in reference to the Portland Cement used in the Southern Main Drainage Works, by John Grant, Mem. Inst. C.E., 8vo, cloth 10 6

Strength of Timber.

Tables of the Strength and Deflection of Timber, by William Lee, Surveyor, post 8vo, cloth 1 6

Sugar.

A Treatise on the Manufacture of Sugar from the Sugar Cane, by Peter Soames, Assoc. King's Coll. London, Assoc. Inst. C.E., Editor of the ' Artizan,' woodcuts and plates, 8vo, cloth 12 6

Sulphuric Acid.

The Chemistry of Sulphuric Acid Manufacture, by

Henry Arthur Smith, cuts, crown 8vo, cloth 4 6

E. & F. N. SPON: LONDON AND NEW YORK.

Contents:

Ground Plan of Kilns for Burning Sulphur Ores - Section of Pyrites Furnace - On the Presence of Arsenic - Methods for Removal of Arsenic - An Experimental Examination of the Circumstances which determine the Action of the Gases in the Lead-chamber - On the Distribution of Gases in the Lead-chamber - On the Temperature at which Nitric Acid acts upon Sulphurous Acid - On the Distribution of Heat in the Lead-chamber - An Inquiry into the best Form of Leaden Chamber, etc.

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, 2nd edition 12 6

Principal Contents: Part I. Introduction and the Principles of Geometry. Part 2. Land Surveying; comprising general observations - the chain - offsets surveying by the chain only - surveying hilly ground, to survey an estate or parish by the chain only, surveying with the theodolite - Mining and town surveying - railroad surveying - Mapping - division and laying out of land - observations on enclosures - plane trigonometry. Part 3. Levelling - simple and compound levelling - the level-book - parliamentary plan and section - Levelling with a theodolite, gradients - wooden curves - to lay out a railway curve - setting out widths. Part 4. Calculating quantities generally, for estimates - Cuttings and Embankments - Tunnels - Brickwork - Ironwork - Timber measuring. Part 5. Description and use of instruments in surveying and plotting - the improved dumpy level - Troughton's Level - the prismatic compass - proportional compass - box sextant - Vernier - pantagraph - Merrett's improved quadrant - improved computation scale - the diagonal scale - straight-edge and sector. Part 6. Logarithms of numbers - logarithmic sines and co-sines, tangent and co-tangents - natural sines and co-sines - Tables for earthwork - for setting out curves, and for various calculations, etc., etc., etc.

Table of Logarithms.

Short Logarithmetic and other Tables, intended to facilitate Practical Calculations, and for solving Arithmetical Problems in class, by Professor W. Cawthorn Unwin, 8vo, cloth 2 0

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

E. & F. N. SPON: LONDON AND NEW YORK

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. 6 0

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

Telephone.

Researches in Electric Telephony, being a Lecture delivered before the Society of Telegraph Engineers, by Professor Alexander Graham Bell, profusely illustrated. Published under the sanction of the Society of Telegraph Engineers. 8vo, sewed 1 6

Timber Measurer and Valuer.

The Timber Merchant and Builder's Vade Mecum, by George Bousfield, second edition, carefully revised and enlarged, 18mo, cloth 2 0

Turbine.

A Practical Treatise on the Construction of Horizontal and Vertical Waterwheels, with 11 plates, specially designed for the use of operative mechanics, by William Cullen, Millwright and Engineer, second edition, revised and enlarged, small 4to, cloth 12 6

Turning.

The Practice of Hand-tuming in Wood, Ivory, Shell, etc., with Instructions for Turning such work in Metal as may be required in the Practice of Turning in Wood, Ivory, etc., also an Appendix on Ornamental Turning, by Francis Campin, second edition, with wood engravings, crown 8vo, cloth (a book for beginners) 6 0

E. & F. N. SPON: LONDON AND NEW YORK.

Contents: On lathes, turning tools, turning wood, drilling, screw-cutting, miscellaneous apparatus and processes, turning particular forms, staining, polishing, spinning metals, materials, ornamental turning, etc.

Ventilation.

Health and Comfort in House Building, or Ventilation with Warm Air by Self-Acting Suction Power, with Review of the mode of Calculating the Draught in Hot-Air Flues, and with some actual Experiments, by J. Drysdale, M.D., and J. W. Hay ward, M.D., second edition, with Supplement, demy 8vo, with plates, cloth 7 6

The Supplement separate 0 6

Watch work.

Treatise on Watchwork, Past and Present, by the Rev. H. L. Nelthropp, M.A., F.S.A., numerous illustrations, crown 8vo, cloth 6 6

Contents:

Definition of words and terms used in watchwork. Tools. Time. Historical summary. On calculations of the numbers for wheels and pinions, their proportional sizes, trains, etc. Of dial-wheels, or motion-work. Length of time of going without winding-up. The Verge. The Horizontal. The Duplex. The Lever. The Chronometer. Repeating Watches. Keyless Watches. The Pendulum, or Spiral Spring. Compensation. Jewelling of pivot-holes. Clerkenwell. Fallacies of the Trade. Incapacity of Workmen. How to choose and use a Watch, etc.

RECENTLY PUBLISHED.

Crown 8vo, cloth, with Illustrations, Price 5d.

Workshop Receipts,

FOR THE USE OF

Manufacturers, Mechanics & Scientific Amateurs.

BY ERNEST SPON.

E. & F. N. SPON: LONDON AND NEW YORK.

One large Volume, Royal 8vo, cloth, Price 7s. 6d.

Spans' Engineers' and Contactors'

ILLUSTRATED BOOK OF PRICES

OF

MACHINES, TOOLS, IRONWORK, AND CONTRACTORS' MATERIAL,

AND

ENGINEERS' DIRECTORY FOR 1877-8.

JUST PUBLISHED,

8vo, cloth, 10s. 6d., with numerous Illustrations,

ROCK BLASTING:

A PRACTICAL TREATISE ON THE MEANS EMPLOYED IN BLASTING ROCKS FOR INDUSTRIAL PURPOSES,

By G. G. ANDRE, F.G.S.,

ASSOC. INST. C.E., MINING CIVIL ENGINEER, MEMBER OF THE SOCIETY OF

ENGINEERS.

8vo, cloth.

TRANSACTIONS OF THE SOCIETY OF ENGINEERS FOR 1877.

8vo, cloth, 10s. 6d.

PROCEEDINGS OF THE ASSOCIATION OF MUNICIPAL AND SANITARY ENGINEERS,

Vol. 3, 1875-6.

Crown 8vo, cloth.

LAYING AND REPAIRING OF ELECTRIC TELEGRAPH CABLES,

By capt. v. hoskicer,

Royal Danish Engineers.

E. & F. N. SPON: LONDON AND NEW YORK