On Designing Belt Gearing. By E. J. COWLING

WELCH, Mem. Inst. Mech. Engineers, Author of 'Designing Valve
Gearing.' Fcap. 8vo, sewed, 6d.

A Handbook of Formula, Tables, and Memoranda, for Architectural Surveyors and others engaged in Building. By J. T. HURST, C.E. Thirteenth edition, royal 32mo, roan, 5s.

"It is no disparagement to the many excellent publications we refer to, to say that in our opinion this little pocket-book of Hurst's is the very best of them all, without any exception. It would be useless to attempt a recapitulation of the contents, for it appears to contain almost everything that anyone connected with building could require, and, best of all, made up in a compact form for carrying in the pocket, measuring only 5 in. by 3 in., and about in. thick, in a limp cover. We congratulate the author on the success of his laborious and practically compiled little book, which has received unqualified and deserved praise from every professional person to whom we have shown it."-The Dublin Builder.

The Cabinet Maker; being a Collection of the most

approved designs in the Medieval, Louis-Seize, and Old English styles, for the use of Cabinet Makers, Carvers, &c. By R. CHARLES. 96 plates, folio, half-bound, 10s. 6d.

Quantity Surveying. By J. LEANING. With 42 illus

trations, crown 8vo, cloth, 9s.

CONTENTS:

A complete Explanation of the London
Practice.

General Instructions.

Order of Taking Off.

Modes of Measurement of the various Trades.
Use and Waste.

Ventilation and Warming.

Credits, with various Examples of Treatment.
Abbreviations.

Squaring the Dimensions."

Abstracting, with Examples in illustration of each Trade.

Billing.

Examples of Preambles to each Trade.
Form for a Bill of Quantities.

Do. Bill of Credits.

Do. Bill for Alternative Estimate. Restorations and Repairs, and Form of Bill. Variations before Acceptance of Tender. Errors in a Builder's Estimate.

A Practical Treatise on

Heat, as applied to the

Useful Arts; for the Use of Engineers, Architects, &c. By THOMAS
Box. With 14 plates. Third edition, crown 8vo, cloth, 12s. 6d.

A Descriptive Treatise on Mathematical Drawing

Instruments: their construction, uses, qualities, selection, preservation, and suggestions for improvements, with hints upon Drawing and Colouring. By W. F. STANLEY, M.R.I. Fifth edition, with numerous illustrations, crown 8vo, cloth, 5s.

Spons' Architects' and Builders' Pocket-Book of Prices

and Memoranda. Edited by W. YOUNG, Architect. Royal 32mo, roan, 4s. 6d. ; or cloth, red edges, 3s. 6d. Published annually. Eleventh edition. Now ready.

Long-Span Railway Bridges, comprising Investiga

tions of the Comparative Theoretical and Practical Advantages of the various adopted or proposed Type Systems of Construction, with numerous Formule and Tables giving the weight of Iron or Steel required in Bridges from 300 feet to the limiting Spans; to which are added similar Investigations and Tables relating to Short-span Railway Bridges. Second and revised edition. By B. BAKER, Assoc. Inst. C.E. Plates, crown 8vo, cloth, 5s.

Elementary Theory and Calculation of Iron Bridges

and Roofs. By AUGUST RITTER, Ph.D., Professor at the Polytechnic School at Aix-la-Chapelle. Translated from the third German edition, by H. R. SANKEY, Capt. R.E. With 500 illustrations, 8vo, cloth, 15s.

The Builder's Clerk: a Guide to the Management

of a Builder's Business. By THOMAS BALES. Fcap. 8vo, cloth, Is. 6d.

The Elementary Principles of Carpentry.

By THOMAS TREDGOLD. Revised from the original edition, and partly re-written, by JOHN THOMAS HURST. Contained in 517 pages of letterpress, and illustrated with 48 plates and 150 wood engravings. Third edition, crown 8vo, cloth, 18s.

Section I. On the Equality and Distribution of Forces - Section II. Resistance of Timber-Section III. Construction of Floors-Section IV. Construction of Roofs-Section V. Construction of Domes and Cupolas-Section VI. Construction of PartitionsSection VII. Scaffolds, Staging, and Gantries-Section VIII. Construction of Centres for Bridges-Section IX. Coffer-dams, Shoring, and Strutting-Section X. Wooden Bridges and Viaducts-Section XI. Joints, Straps, and other Fastenings-Section XII. Timber.

Our Factories, Workshops, and Warehouses: their

Sanitary and Fire-Resisting Arrangements. By B. H. THWAITE, Assoc. Mem. Inst. C.E. With 183 wood engravings, crown 8vo, cloth, 95.

Gold: Its Occurrence and Extraction, embracing the Geographical and Geological Distribution and the Mineralogical Characters of Gold-bearing rocks; the peculiar features and modes of working Shallow Placers, Rivers, and Deep Leads; Hydraulicing; the Reduction and Separation of Auriferous Quartz; the treatment of complex Auriferous ores containing other metals; a Bibliography of the subject and a Glossary of Technical and Foreign Terms. By ALFRED G. Lock, F.R.G.S. With numerous illustrations and maps, 1250 pp., super-royal 8vo, cloth, 27. 12s. 6d.

Progressive Lessons in Applied Science. By EDWARD

SANG, F.R.S.E. Crown 8vo, cloth, each Part, 3s.

Part 1. Geometry on Paper-Part 2. Solidity, Weight, and Pressure-Part 3. Trigonometry, Vision, and Surveying Instruments.

A Practical Treatise on Coal Mining. By GEORGE

G. ANDRÉ, F.G.S., Assoc. Inst. C.E., Member of the Society of Engineers.
With 82 lithographic plates. 2 vols., royal 4to, cloth, 3. 125.

Sugar Growing and Refining: a Comprehensive

Treatise on the Culture of Sugar-yielding Plants, and the Manufacture, Refining, and Analysis of Cane, Beet, Maple, Milk, Palm, Sorghum, and Starch Sugars, with copious statistics of their production and commerce, and a chapter on the distillation of Rum. By CHARLES G. WARNFORD LOCK, F.L.S., &c., and G. W. WIGNER and R. H. HARLAND, FF.C.S., FF.I.C. With 205 illustrations, 8vo, cloth, 30s.

Spons' Information for Colonial Engineers. Edited

by J. T. HURST. Demy 8vo, sewed.

No. 1, Ceylon. By ABRAHAM DEANE, C.E.

CONTENTS:

2s. 6d.

Introductory Remarks-Natural Productions-Architecture and Engineering-Topography, Trade, and Natural History-Principal Stations-Weights and Measures, etc., etc.

No. 2. Southern Africa, including the Cape Colony, Natal, and the
Dutch Republics. By HENRY HALL, F.R.G.S., F.R.C.I. With
Map. 35. 6d.

CONTENTS:

General Description of South Africa-Physical Geography with reference to Engineering Operations-Notes on Labour and Material in Cape Colony-Geological Notes on Rock Formation in South Africa-Engineering Instruments for Use in South Africa-Principal Public Works in Cape Colony: Railways, Mountain Roads and Passes, Harbour Works, Bridges, Gas Works, Irrigation and Water Supply, Lighthouses, Drainage and Sanitary Engineering, Public Buildings, Mines-Table of Woods in South Africa-Animals used for Draught Purposes-Statistical Notes-Table of Distances-Rates of Carriage, etc.

No. 3. India. By F. C. Danvers, Assoc. Inst. C.E. With Map. 4s. 6d.

CONTENTS:

Physical Geography of India-Building Materials-Roads-Railways-Bridges-Irrigation-River Works-Harbours-Lighthouse Buildings-Native Labour-The Principal Trees of India-Money-Weights and Measures-Glossary of Indian Terms, etc.

A Practical Treatise on Casting and Founding,

including descriptions of the modern machinery employed in the art. By N. E. SPRETSON, Engineer. Third edition, with 82 plates drawn to scale, 412 pp., demy 8vo, cloth, 18s.

Gas Works: their Arrangement, Construction, Plant, and Machinery. By F. COLYER, M. Inst. C.E. With 31 folding plates, 8vo, cloth, 24s.

The Clerk of Works: a Vade-Mecum for all engaged in the Superintendence of Building Operations. By G. G. HOSKINS, F.R.I.B.A. Third edition, fcap. 8vo, cloth, Is. 6d.

Tropical Agriculture; or, the Culture, Preparation,

Commerce, and Consumption of the Principal Products of the Vegetable Kingdom, as furnishing Food, Clothing, Medicine, etc., and in their relation to the Arts and Manufactures; forming a practical treatise and Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, etc., of the various Substances obtained from Trees and Plants entering into the Husbandry of Tropical and Sub-Tropical Regions. By P. L. SIMMONDS. Second edition, revised and improved, 515 pages, 8vo, cloth, 1. IS.

American Foundry Practice: Treating of Loam, Dry Sand, and Green Sand Moulding, and containing a Practical Treatise upon the Management of Cupolas, and the Melting of Iron. By T. D. WEST, Practical Iron Moulder and Foundry Foreman, Second edition, with numerous illustrations, crown 8vo, cloth, 10s. 6d.

The Maintenance of Macadamised Roads. By T. CODRINGTON, M.I.C.E, F.G.S., General Superintendent of County Roads for South Wales. 8vo, cloth, 6s.

Hydraulic Steam and Hand Power Lifting and

Pressing Machinery. By FREDERICK COLYER, M. Inst. C.E., M. Inst. M.E.
With 73 plates, 8vo, cloth, 18s.

Pumps and Pumping Machinery.

By F. COLYER,

M.I.C.E., M.I.M.E. With 23 folding plates, 8vo, cloth, 12s. 6d.

The Municipal and Sanitary Engineer's Handbook.

By H. PERCY BOULNOIS, Mem. Inst. C.E., Borough Engineer, Portsmouth. With numerous illustrations, demy 8vo, cloth, 12s. 6d.

CONTENTS:

The Appointment and Duties of the Town Surveyor-Traffic-Macadamised RoadwaysSteam Rolling-Road Metal and Breaking-Pitched Pavements-Asphalte-Wood Pavements -Footpaths-Kerbs and Gutters-Street Naming and Numbering-Street Lighting-Sewerage-Ventilation of Sewers-Disposal of Sewage-House Drainage-Disinfection-Gas and Water Companies, &c., Breaking up Streets-Improvement of Private Streets-Borrowing Powers-Artizans' and Labourers' Dwellings-Public Conveniences-Scavenging, including Street Cleansing-Watering and the Removing of Snow-Planting Street Trees-Deposit of Plans-Dangerous_ Buildings-Hoardings-Obstructions-Improving Street Lines-Cellar Openings-Public Pleasure Grounds-Cemeteries-Mortuaries-Cattle and Ordinary Markets -Public Slaughter-houses, &c.-Giving numerous Forms of Notices, Specifications, and General Information upon these and other subjects of great importance to Municipal Engineers and others engaged in Sanitary Work.

Tables of the Principal Speeds occurring in Mechanical Engineering, expressed in metres in a second. By P. KEERAYEFF, Chief Mechanic of the Obouchoff Steel Works, St. Petersburg; translated by SERGIUS KERN, M.E. Fcap. 8vo, sewed, 6d.

Spons' Dictionary of Engineering, Civil, Mechanical,

Military, and Naval; with technical terms in French, German, Italian, and Spanish, 3100 pp., and nearly 8000 engravings, in super-royal 8vo, in 8 divisions, 51. 8s. Complete in 3 vols., cloth, 51. 5s. Bound in a superior manner, half-morocco, top edge gilt, 3 vols., 67. 12s.

See page 15.

A Treatise on the Origin, Progress, Prevention, and

Cure of Dry Rot in Timber; with Remarks on the Means of Preserving
Wood from Destruction by Sea-Worms, Beetles, Ants, etc. BY THOMAS
ALLEN BRITTON, late Surveyor to the Metropolitan Board of Works,
etc., etc. With 10 plates, crown 8vo, cloth, 7s. 6d.

Metrical Tables. By G. L. MOLESWORTH, M.I.C.E.

32mo, cloth, Is. 6d.

CONTENTS.

General-Linear Measures-Square Measures-Cubic Measures-Measures of Capacity

Weights-Combinations-Thermometers.

Elements of Construction for Electro-Magnets. By

Count TH. DU MONCEL, Mem. de l'Institut de France. Translated from the French by C. J. WHARTON. Crown 8vo, cloth, 4s. 6d.

Electro-Telegraphy.

By FREDERICK S. BEECHEY,

Telegraph Engineer. A Book for Beginners. Illustrated. Fcap. 8vo, sewed, 6d.

Handrailing: by the Square Cut.

By JOHN JONES, Staircase Builder. Fourth edition, with seven plates, 8vo, cloth, 3s. 6d.

Handrailing: by the Square Cut.

By JOHN JONES, Staircase Builder. Part Second, with eight plates, 8vo, cloth, 3s. 6d.

Practical Electrical Units Popularly Explained, with

numerous illustrations and Remarks. By JAMES SWINBURNE, late of J. W. Swan and Co., Paris, late of Brush-Swan Electric Light Company, U.S.A. 18mo, cloth, Is. 6d.

Philipp Reis, Inventor of the Telephone: A Biographical

Sketch. With Documentary Testimony, Translations of the Original Papers of the Inventor, &c. By SILVANUS P. THOMPSON, B.A., Dr. Sc., Professor of Experimental Physics in University College, Bristol. With illustrations, 8vo, cloth, 7s. 6d.