A Pocket-Book of Useful Formula and Memoranda

for Civil and Mechanical Engineers. By GUILFORD L. MOLESWORTH, Mem. Inst. C.E., Consulting Engineer to the Government of India for State Railways. With numerous illustrations, 744 pp., Twenty-first edition, revised and enlarged, 32mo, roan, 6s.

SYNOPSIS OF CONTENTS:

Surveying, Levelling, etc.-Strength and Weight of Materials-Earthwork, Brickwork, Masonry, Arches, etc.-Struts, Columns, Beams, and Trusses-Flooring, Roofing, and Roof Trusses Girders, Bridges, etc.-Railways and Roads-Hydraulic Formula-Canals, Sewers, Waterworks, Docks-Irrigation and Breakwaters-Gas, Ventilation, and Warming-Heat, Light, Colour, and Sound-Gravity: Centres, Forces, and Powers-Millwork, Teeth of Wheels, Shafting, etc.-Workshop Recipes-Sundry Machinery-Animal Power-Steam and the Steam Engine-Water-power, Water-wheels, Turbines, etc.-Wind and WindmillsSteam Navigation, Ship Building, Tonnage, etc.-Gunnery, Projectiles, etc.-Weights, Measures, and Money-Trigonometry, Conic Sections, and Curves-Telegraphy-Mensuration-Tables of Areas and Circumference, and Arcs of Circles-Logarithms, Square and Cube Roots, Powers-Reciprocals, etc.-Useful Numbers-Differential and Integral Calculus-Algebraic Signs-Telegraphic Construction and Formulæ.

Spons Tables and Memoranda for Engineers;

selected and arranged by J. T. HURST, C.E., Author of 'Architectural Surveyors' Handbook,' 'Hurst's Tredgold's Carpentry,' etc. Fifth edition, 64mo, roan, gilt edges, Is. ; or in cloth case, Is. 6d.

This work is printed in a pearl type, and is so small, measuring only 2 in. by 1 in. by in. thick, that it may be easily carried in the waistcoat pocket.

"It is certainly an extremely rare thing for a reviewer to be called upon to notice a volume measuring but 2 in. by 1 in., yet these dimensions faithfully represent the size of the handy little book before us. The volume-which contains 118 printed pages, besides a few blank pages for memoranda-is, in fact, a true pocket-book, adapted for being carried in the waistcoat pocket, and containing a far greater amount and variety of information than most people would imagine could be compressed into so small a space. The little volume has been compiled with considerable care and judgment, and we can cordially recommend it to our readers as a useful little pocket companion."-Engineering.

Analysis, Technical Valuation, Purification and Use

of Coal Gas. By the Rev. W. R. BOWDITCH, M.A. With wood engravings, 8vo, cloth, 12s. 6d.

A Practical Treatise on Natural and Artificial Concrete, its Varieties and Constructive Adaptations. By HENRY REID, Author of the Science and Art of the Manufacture of Portland Cement.' New Edition, with 59 woodcuts and 5 plates, 8vo, cloth, 15s.

Hydrodynamics: Treatise relative to the Testing of

Water-Wheels and Machinery, with various other matters pertaining to Hydrodynamics. By JAMES EMERSON. With numerous illustrations, 360 pp. Third edition, crown 8vo, cloth, 4s. 6d.

Electricity as a Motive Power. By Count TH. Du MONCEL, Membre de l'Institut de France, and FRANK GERALDY, Ingénieur des Ponts et Chausées. Translated and Edited, with Additions, by C. J. WHARTON, Assoc. Soc. Tel. Eng. and Elec. With 113 engravings and diagrams, crown 8vo, cloth, 7s. 6d.

The Gas Analyst's Manual. By F. W. HARTLEY, Assoc. Inst. C.E., etc. With numerous illustrations. Crown 8vo, cloth, 6s.

Gas Measurement and Gas Meter Testing.

F. W. HARTLEY.
crown 8vo, cloth, 4s.

By

Fourth edition, revised and extended. Illustrated,

The French - Polisher's Manual.

By a FrenchPolisher; containing Timber Staining, Washing, Matching, Improving, Painting, Imitations, Directions for Staining, Sizing, Embodying, Smoothing, Spirit Varnishing, French-Polishing, Directions for Repolishing. Third edition, royal 32m0, sewed, 6d.

Hops, their Cultivation, Commerce, and Uses in

various Countries. By P. L. SIMMONDS. Crown 8vo, cloth, 4s. 6d. A Practical Treatise on the Manufacture and Distri

bution of Coal Gas. By WILLIAM RICHARDS. Demy 4to, with numerous wood engravings and 29 plates, cloth, 28s.

SYNOPSIS OF CONTENTS:

Introduction-History of Gas Lighting-Chemistry of Gas Manufacture, by Lewis Thompson, Esq., M.R.C.S.-Coal, with Analyses, by J. Paterson, Lewis Thompson, and G. R. Hislop, Esqrs.-Retorts, Iron and Clay-Retort Setting-Hydraulic Main-Condensers Exhausters-Washers and Scrubbers-Purifiers-Purification History of Gas Holder-Tanks, Brick and Stone, Composite, Concrete, Cast-iron, Compound Annular Wrought-iron-Specifications-Gas Holders-Station Meter-Governor DistributionMains Gas Mathematics, or Formula for the Distribution of Gas, by Lewis Thompson, Esq.Services Consumers' Meters-Regulators-Burners-Fittings-Photometer-Carburization of Gas-Air Gas and Water Gas-Composition of Coal Gas, by Lewis Thompson, Esq.Analyses of Gas-Influence of Atmospheric Pressure and Temperature on Gas-Residual Products-Appendix-Description of Retort Settings, Buildings, etc., etc.

Practical Geometry, Perspective, and Engineering

Drawing; a Course of Descriptive Geometry adapted to the Requirements of the Engineering Draughtsman, including the determination of cast shadows and Isometric Projection, each chapter being followed by numerous examples; to which are added rules for Shading Shade-lining, etc., together with practical instructions as to the Lining, Colouring, Printing, and general treatment of Engineering Drawings, with a chapter on drawing Instruments By GEORGE S. CLARKE, Capt. R.E. Second edition, with 21 plates. 2 vols., cloth, 10s. 6d.

The Elements of Graphic Statics. By Professor KARL VON OTT, translated from the German by G. S. CLARKE, Capt. R.E., Instructor in Mechanical Drawing, Royal Indian Engineering College. With 93 illustrations, crown 8vo, cloth, 5s.

The Principles of Graphic Statics. By GEORGE

SYDENHAM CLARKE, Capt. Royal Engineers. With 112 illustrations. 4to, cloth, 12s. 6d.

The New Formula for Mean Velocity of Discharge

6

of Rivers and Canals. By W. R. KUTTER. Translated from articles in the Cultur-Ingenieur,' by LowIS D'A. JACKSON, Assoc. Inst. C.E. 8vo, cloth, 12s. 6d.

Practical Hydraulics; a Series of Rules and Tables

for the use of Engineers, etc., etc. By THOMAS BOX. Fifth edition, numerous plates, post 8vo, cloth, 5s.

A Practical Treatise on the Construction of Horizontal and Vertical Waterwheels, specially designed for the use of operative mechanics. By WILLIAM CULLEN, Millwright and Engineer., With II plates. Second edition, revised and enlarged, small 4to, cloth, 12s. 6d.

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, 12s. 6d. 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,
CONTENTS:

7s. 6d.

Chap. 1. 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 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, 3s.

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, 18s.

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, 18s.

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, 7s. 6d.

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, 37. 12s.

CONTENTS:

Machinery for Prospecting, Excavating, Hauling, and Hoisting-Ventilation-PumpingTreatment 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, 2s. 6d.

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, 18s.

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, 9s.

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, 5s.

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, IOS. 6d.

Surcharged and different Forms of Retaining Walls. By J. S. TATE. Illustrated, 8vo, sewed, 25.

A Treatise on Ropemaking as practised in public and private Rope-yards, with a Description of the Manufacture, Rules, Tables of Weights, etc., adapted to the Trade, Shipping, Mining, Railways, Builders, etc. By R. CHAPMAN, formerly foreman to Messrs. Huddart and Co., Limehouse, and late Master Ropemaker to H.M. Dockyard, Deptford. Second edition, 12mo, cloth, 35.

Laxton's Builders' and Contractors' Tables; for the use of Engineers, Architects, Surveyors, Builders, Land Agents, and others. Bricklayer, containing 22 tables, with nearly 30,000 calculations. 4to, cloth, 5s.

Laxton's Builders' and Contractors' Tables. Excavator, Earth, Land, Water, and Gas, containing 53 tables, with nearly 24,000 calculations. 4to, cloth, 5s.

Sanitary Engineering: a Guide to the Construction

of Works of Sewerage and House Drainage, with Tables for facilitating the calculations of the Engineer. By BALDWIN LATHAM, C.E., M. Inst. C.E., F.G.S., F.M.S., Past-President of the Society of Engineers. Second edition, with numerous plates and woodcuts, 8vo, cloth, 17. 10s.

Screw Cutting Tables for Engineers and Machinists, giving the values of the different trains of Wheels required to produce Screws of any pitch, calculated by Lord Lindsay, M.P., F.R.S., F.R.A.S., etc. Cloth, oblong, 2s.

Screw Cutting Tables, for the use of Mechanical

Engineers, showing the proper arrangement of Wheels for cutting the
Threads of Screws of any required pitch, with a Table for making the
Universal Gas-pipe Threads and Taps. By W. A. MARTIN, Engineer.
Second edition, oblong, cloth, Is., or sewed, 6d.

A Treatise on a Practical Method of Designing SlideValve Gears by Simple Geometrical Construction, based upon the principles enunciated in Euclid's Elements, and comprising the various forms of Plain Slide-Valve and Expansion Gearing; together with Stephenson's, Gooch's, and Allan's Link-Motions, as applied either to reversing or to variable expansion combinations. By EDWARD J. COWLING WELCH, Memb. Inst. Mechanical Engineers. Crown 8vo, cloth, 6s.

Cleaning and Scouring: a Manual for Dyers, Laun

dresses, and for Domestic Use. By S. CHRISTOPHER. 18mo, sewed, 6d.

A Handbook of House Sanitation; for the use of all persons seeking a Healthy Home. A reprint of those portions of Mr. Bailey-Denton's Lectures on Sanitary Engineering, given before the School of Military Engineering, which related to the 'Dwelling,' enlarged and revised by his Son, E. F. BAILEy-Denton, C.E., B.A. With 140 illustrations, 8vo, cloth, 8s. 6d.