Humbers New Work on Water-Supply.

A COMPREHENSIVE TREATISE on the WATER-SUPPLY of CITIES and TOWNS. By William Humber, A.-M. Inst. C.E., and M. Inst. M.E. Illustrated with 50 Double Plates, 1 Single Plate, Coloured Frontispiece, and upwards of 250 Woodcuts, and containing 400 pages of Text. Imp. 4to, 6l. 6s. elegantly and substantially half-bound in morocco.

List of Contents: -

I. Historical Sketch of some of the means that have been adopted for the Supply of Water to Cities and Towns. - II. Water and the Foreign Matter usually-associated with it. - III. Rainfall and Evaporation. - IV. Springs and the waterbearing formations of various districts. - V. Measurement and Estimation of the Flow of Water. - VI. On the Selection of the Source of Supply. - VII. Wells. - VIII. Reservoirs. - IX. The Purification of Water. - X. Pumps. - XI. Pumping

Machinery. - XII. Conduits. - XIII. Distribution of Water. - XIV. Meters, Service Pipes, and House Fittings. - XV. The Law and Economy of Water Works. - XVI. Constant and Intermittent Supply. - XVII. Description of Plates. - Appendices, giving Tables of Rates of Supply, Velocities, etc. etc, together with Specifications of several Works illustrated, among which will be found: - Aberdeen, Bideford, Canterbury, Dundee, Halifax, Lambeth, Rotherham, Dublin, and others.

"The most systematic and valuable work upon water supply hitherto produced in English, or in any other language .... Mr. Humber's work is characterised almost throughout by an exhaustiveness much more distinctive of French and German than of English technical treatises." - Engineer.

Humber's Great Work on Bridge Construction.

A COMPLETE and PRACTICAL TREATISE on CAST and

WROUGHT-IRON BRIDGE CONSTRUCTION, including

Iron Foundations. In Three Parts - Theoretical, Practical, and

Descriptive. By William Humber, A.-M. Inst. C.E., and M.Inst.

M.E. Third Edition, with 115 Double Plates. In 2 vols. imp. 4to,

6l. i6s. 6d. half-bound in morocco.

" A book - and particularly a large and costly treatise like Mr. Humber's-which has reached its third edition may certainly be said to have established its own reputation." - Engineering.

A RECORD of the PROGRESS of MODERN ENGINEER. ING. First Series. Comprising Civil, Mechanical, Marine, Hydraulic, Railway, Bridge, and other Engineering Works, etc. By William Humber, A.-M. Inst. C.E., etc. Imp. 4to, with 36 Double Plates, drawn to a large scale, and Portrait of John Hawkshaw, C.E., F.R.S., etc., and descriptive Letter-press, Specifications, etc. 3l. 3s. half morocco.

List Of The Plates And Diagrams

Victoria Station and Roof, L. B. & S. C. R. (8 plates); Southport Pier (2 plates); Victoria Station and Roof, L. C. & D. and G. W. R. (6 plates) ; Roof of Cremorne Music Hall; Bridge over G. N. Railway; Roof of Station, Dutch Rhenish Rail (2 plates) ; Bridge over the Thames, West London Extension Railway (5 plates) ; Armour Plates ; Suspension Bridge, Thames (4 plates) : The Allen Engine ; Suspension Bridge, Avon (3 plates); Underground Railway (3 plates).

Handsomely lithographed and printed. It will find favour with many who desire to preserve in a permanent form copies of the plans and specifications prepared for the guidance of the contractors for many important engineering works." - Engineer.

HUMBER'S RECORD OF MODERN ENGINEERING. Second Series. Imp. 4to, with 36 Double Plates, Portrait of Robert Stephenson, C.E., etc, and descriptive Letterpress, Specifications, etc. 3l. 3s. half morocco.

Birkenhead Docks, Low Water Basin (15 plates); Charing Cross Station Roof, C. C. Railway (3 plates) ; Digswell Viaduct, G. N. Railway ; Robbery Wood Viaduct, G. N. Railway ; Iron Permanent Way ; Clydach Viaduct, Merthyr, Tredegar, and Abergavenny Railway ; Ebbw

Viaduct, Merthyr, Tredegar, and Abergavenny Railway ; College Wood Viaduct, Cornwall Railway ; Dublin Winter Palace Roof (3 plates) ; Bridge over the Thames, L. C. and D. Railway (6 plates) ; Albert Harbour, Greenock (4 plates).

HUMBER'S RECORD OF MODERN ENGINEERING. Third Series. Imp. 4to, with 40 Double Plates, Portrait of J. R. M'Clean, Esq., late Pres. Inst. C.E., and descriptive Letterpress, Specifications, etc. 3/. 3s. half morocco.

Main Drainage, Metropolis. - North Side. - Map showing Interception of Sewers ; Middle Level Sewer (2 plates'; Outfall Sewer, Bridge over River Lea (3 plates); Outfall Sewer, Bridge over Marsh Lane, North Woolwich Railway, and Bow and Barking Railway Junction ; Outfall Sewer, Bridge over Bow and Barking Railway (3 plates); Outfall Sewer, Bridge over East London Waterworks' Feeder (2 plates); Outfall Sewer, Reservoir (2 plates); Outfall Sewer, Tumbling Bay and Outlet; Outfall Sewer, Penstocks. South Side. - Outfall Sewer, Bermondsey

Branch (2 plates); Outfall Sewer, Reservoir and Outlet (4 plates) ; Outfall Sewer, Filth Hoist; Sections of Sewers (North and South Sides).

Thames Embankment. - Section of River Wall; Steamboat Pier, Westminster (2 plates) ; Landing Stairs between Charing Cross and Waterloo Bridges ; York Gate (2 plates) ; Overflow and Outlet at Savoy Street Sewer (3 plates) ; Steamboat Pier, Waterloo Bridge (3 plates); Junction of Sewers, Plans and Sections; Gullies, Plans and Sections ; Rolling Stock ; Granite and Iron Forts.

HUMBER'S RECORD OF MODERN ENGINEERING. Fourth Series. Imp. 4 to, with 36 Double Plates, Portrait of John Fowler, Esq., late Pres. Inst. C.E., and descriptive Letterpress, Specifications, etc. 3l. 3s. half morocco.

Abbey Mills Pumping Station, Main Drainage, Metropolis (4 plates); Barrow Docks (5 plates) ; Manquis Viaduct, Santiago and Valparaiso Railway (2 plates); Adam's Locomotive, St. Helen's Canal Railway (2 plates); Cannon Street Station Roof, Charing Cross Railway (3 plates) ; Road Bridge over the River Moka (2 plates). Telegraphic Apparatus for Mesopotamia ; Viaduct over the River Wye, Midland Railway (3 plates); St. German's Viaduct, Cornwall Railway (2 plates) ; Wrought-iron Cylinder for Diving Bell; Mill wall Docks (6 plates); Milroy's Patent Excavator, Metropolitan District Railway (6 plates); Harbours, Ports, and Breakwaters (3 plates).

PUBLISHED BY CROSBY LOCKWOOD & CO. 3

Strains\ Formula & Diagrams for Calculation of.

A HANDY BOOK for the CALCULATION of STRAINS in GIRDERS and SIMILAR STRUCTURES, and their STRENGTH ; consisting of Formulae and Corresponding Diagrams, with numerous Details for Practical Application, etc. By William Humber, A.-M. Inst. C.E., etc. Third Edition. With nearly 100 Woodcuts and 3 Plates, Crown 8vo, 7s. 6d. cloth. "The system of employing diagrams as a substitute for complex computations is one justly coming into great favour, and in that respect Mr. Humber's volume is fully up to the times."- Engineering.