Royal 32mo, russia, gilt edges, 12s. 6d.

Engineers’ Pocket-Book.—The Pocket-Book of Pocket-Books; being Molesworth and Hurst’s Pocket-Books, printed on thin paper and bound together in one volume.

Royal 32mo, roan, 6s.

Molesworth’s Engineers’ Pocket-Book.—A Pocket-Book of Useful FormulÆ and Memoranda for Civil and Mechanical Engineers. By Guilford L. Molesworth, Member of the Institution of Civil Engineers, Consulting Engineer to the Government of India for State Railways. Seventeenth Edition, Revised and considerably Enlarged by the Author. Containing 150 additional pages.

Sixth Edition, royal 32mo, roan, 5s.

A Handbook of FormulÆ, Rules, and Memoranda for Architectural Surveyors and others engaged in Building. By J. T. Hurst, C.E.

CONTAINING—

FormulÆ useful in designing Builders’ Work.

Memoranda connected with Builders’ Work.

The Practice of Builders’ Measurement.

Summary of the Practice in Dilapidations.

Mensuration.

Table of the Weight of Materials used in Building.

Constants of Labour.

Valuation of Property.

Scale of Professional Charges for Architectural Surveyors, &c., &c.

64mo, roan, gilt edges, 1s.

Spons’ Tables and Memoranda for Engineers. Selected and arranged by J. T. Hurst, C.E. This work is printed in pearl type, and is so small, measuring only 2½ in. by 2 in., by ¼ in. thick, that it may be easily carried in the waistcoat pocket.

Just published, crown 8vo, cloth, with Wood Engravings, 6s.

Iron as a Material of Construction;
Being a Course of Lectures delivered at the Royal School of Naval Architecture, South Kensington. Revised and Enlarged. By William Pole, F.R.S.

Now ready, post 8vo, cloth, 6s.

Barlow’s Tables of Squares, Cubes, Square Roots, Cube Roots, Reciprocals of all Integer Numbers up to 10,000.

Just published, 8vo, cloth, 7s. 6d.

Table of Logarithms of the Natural Numbers, from 1 to 108,000. By Charles Babbage, Esq., M.A. Stereotyped Edition.

Demy 8vo, cloth, 3s. 6d.

Tables for Arches.
By Frank Robertson, F.R.A.S., late First Lieut. R.E.

Just published, 8vo, cloth, 12s. 6d.

Engineering Notes.
By Frank Robertson, F.R.A.S., late First Lieut. R.E.

Second edition, Revised and Enlarged, small 4to, cloth, 12s. 6d.

A Practical Treatise on the Construction of Horizontal and Vertical Water-wheels, with Twelve Plates, especially designed for the use of Operative Mechanics. By William Cullen, Millwright and Engineer.

Now ready, demy 8vo, cloth, with Plates, 7s. 6d.

Health and Comfort in House Building; or, Ventilation with Warm Air by Self-Acting Suction Power. With a 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. Hayward, M.D.

Post 8vo, cloth, with Plates, 4s. 6d.

A Practical Treatise on Concrete, and how to Make it. With Observations on the Uses of Cements, Limes, and Mortars. By Henry Reid, C.E.

Third Edition, royal 32mo, roan, 4s. 6d.

A Pocket-Book of Practical Rules for the proportions of Modern Engines and Boilers for Land and Marine purposes. By N. P. Burgh.

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

Just published, 2 vols. medium 8vo, cloth, illustrated by a Steel Portrait, Lithographs, and numerous Wood Engravings, including many accurate Illustrations of Cornwall, its Mines and Mining Machinery, £1 16s.

The Life of Richard Trevithick, Inventor of the High-pressure Steam Engine. By Francis Trevithick, C.E.

Crown 8vo, cloth, 1s.

How to Publish a Book;
Being Directions and Hints to Authors. By Ernest Spon.

Just published, in crown 4to, cloth, with Wood Engravings, 25s.

A Treatise on the Construction and Operation of Wood-working Machines, including a History of the Origin and Progress and Manufacture of Wood-working Machinery. By J. Richards, M.E.

Just published, 4to, cloth, 25s.

Picturesque Architectural Studies and Practical Designs for Gate Lodges, Cottages, Cottage Hospitals, Villas, Vicarages, Country Residences, Schools, Village Churches, etc., etc. By W. Young.

Just published, 8vo, with Plates, 5s.

On the Construction of Catch-water Reservoirs in Mountain Districts, for the Supply of Towns, or for other Purposes. By C. H. Beloe, Author of the ‘Handbook of the Liverpool Waterworks.’

Just published, 8vo, cloth, Illustrated with Coloured Plates, 16s.

Vazeeri Rupi, the Silver Country of the Vazeers, in Kulu: its Beauties, Antiquities, and Silver Mines, including a Trip over the lower Himalayah range and Glaciers. By J. Calvert, F.G.S., Mem. Inst. C.E.

London: E. & F. N. SPON, 48, Charing Cross.
New York: 446, Broome Street.