Imaginary Quantities. By M. Argand. Translatedby Prof. Hardy. 18mo, boards. (New York) net 20
Text Book of Practical Solid Geometry. ByE. H. de V. Atkinson. Revised by Major B. R.Ward, R.E. Second edition, 17 plates, 8vo.(1901) 76
Quick and Easy Methods of Calculating, andthe Theory and Use of the Slide Rule. ByR. G. Blaine. Third edition, 6 illus. 152 pp.16mo, leather cloth. (1907) 26
Symbolic Algebra, or the Algebra of AlgebraicNumbers. By W. Cain. 18mo, boards. (NewYork) net 20
Nautical Astronomy. By J. H. Colvin. 127 pp.crown, 8vo. (1901) net 26
Chemical Problems. By J. C. Foye. Fourth edition,141 pp. 18mo, boards. (New York, 1898) net 20
Primer of the Calculus. By E. S. Gould. Secondedition, 24 illus. 122 pp. 18mo, boards. (NewYork, 1899) net 20
Elementary Treatise on the Calculus for EngineeringStudents. By J. Graham. Third edition,276 pp. crown 8vo. (1905). (Finsbury TechnicalManual) 76
Manual of the Slide Rule. By F. A. Halsey.Second edition, 31 illus. 84 pp. 18mo, boards.(New York, 1901) net 20
Reform in Chemical and Physical Calculations.By C. J. T. Hanssen. 4to. (1897) net 66
Algebra Self-Taught. By P. Higgs. Third edition,104 pp. crown 8vo. (1903) 26
Galvanic Circuit investigated Mathematically.By G. S. Ohm. Translated by William Francis.269 pp. 18mo, boards. (New York, 1891) net 20
Elementary Practical Mathematics. By M. T.Ormsby. 420 pp. demy 8vo. (1900) net 76
Elements of Graphic Statics. By K. Von Ott.Translated by G. S. Clarke. 93 illus. 128 pp.crown 8vo. (1901) 50
Figure of the Earth. By F. C. Roberts. 18mo,boards. (New York) net 20
Arithmetic of Electricity. By T. O’C. Sloane.Thirteenth edition, crown 8vo. (New York,1901) net 46
Graphic Method for Solving certain Questionsin Arithmetic or Algebra. By G. L. Vose.Second edition with 28 illus. 62 pp. 18mo, boards.(New York, 1902) net 20
Problems in Electricity. A Graduated Collectioncomprising all branches of Electrical Science.By R. Weber. Translated from the French byE. A. O’Keefe. 34 illus. 366 pp. crown 8vo.(1902) net 76

MECHANICAL ENGINEERING.

Steam Engines and Boilers, etc.

Handbook for Mechanical Engineers. By Hy.Adams. Fourth edition, 426 pp. crown 8vo.(1897) net 46
Appleby’s Handbooks of Machinery. Manyillustrations, 8vo. Sections 2, 3, 4 and 6 each 36
Section 5 50
Section 1.—Prime Movers. Out of Print.
Section 2.—Hoisting Machinery, Winding Engines, etc.
Section 3.—Pumping Machinery and Pumping Engines.
Section 4.—Machine Tools and Accessories.
Section 5.—Contractors’ Plant and Railway Materials.
Section 6.—Mining, Colonial and Manufacturing Machinery.
Engineers’ Sketch Book of Mechanical Movements.By T. W. Barber. Fifth edition, 3000illus. 355 pp. 8vo. (1906) net 106
The Repair and Maintenance of Machinery. ByT. W. Barber. 417 illus. 476 pp. 8vo. (1895) 106
Slide Valve and its Functions, with specialreference to Modern Practice in the UnitedStates. By J. Begtrup. 90 diagrams, 146 pp.medium 8vo. (New York, 1902) net 80
Practical Treatise on Mill Gearing. By T. Box.Fifth edition, 11 plates, 128 pp. crown 8vo.(1892) 76
Safety Valves. By R. H. Buell. Third edition,20 illus. 100 pp. 18mo, boards. (New York, 1898) net 20
Machine Design. By Prof. W. L. Cathcart.
Part I. Fastenings. 123 illus. 291 pp.demy 8vo. (New York, 1903) net 		126
Chimney Design and Theory. By W. W.Christie. Second edition, 54 illus. 192 pp.crown 8vo. (New York, 1902) net 126
Furnace Draft: its Production by MechanicalMethods. By W. W. Christie. 5 illus. 80 pp.18mo, boards. (New York, 1906) net 20
Working and Management of Steam Boilersand Engines. By F. Colyer. Second edition,108 pp. crown 8vo. (1902) 36
The Stokers’ Catechism. By W. J. Connor.63 pp. limp cloth. (1906) net 10
Treatise on the use of Belting for the Transmissionof Power. By J. H. Cooper. Fifth edition, 94 illus.399 pp. demy 8vo. (New York, 1901) net 126
The Steam Engine considered as a ThermodynamicMachine. By J. H. Cotterill. Thirdedition, 39 diagrams, 444 pp. 8vo. (1896) 150
Fireman’s Guide, a Handbook on the Care ofBoilers. By K. P. Dahlstrom. Ninth editionfcap. 8vo. (New York, 1902) net 16
Diseases of a Gasolene Automobile, and How toCure Them. By A. L. Dyke and G. P. Dorris.127 illus. 201 pp. crown 8vo. (New York, 1903) net 66
Belt Driving. By G. Halliday. 3 folding plates,100 pp. 8vo. (1894) 36
Worm and Spiral Gearing. By F. A. Halsey.13 plates, 85 pp. 18mo, boards. (New York) net 20
Commercial Efficiency of Steam Boilers. ByA. Hanssen. Large 8vo, sewed. (1898) 06
Corliss Engine. By J. T. Henthorn. Thirdedition, 23 illus. 95 pp. square 16mo. (New York,1904) 36
Liquid Fuel for Mechanical and Industrial Purposes.By E. A. Brayley Hodgetts. 106 illus. 129 pp.8vo. (1890) 50
Elementary Text-Book on Steam Engines andBoilers. By J. H. Kinealy. Fourth edition,106 illus. 259 pp. 8vo. (New York, 1903) net 86
Centrifugal Fans. By J. H. Kinealy. 33 illus.206 pp. fcap. 8vo, leather. (New York, 1905) net 126
Mechanical Draft. By J. H. Kinealy. 27 originaltables and 13 plates, 142 pp. crown 8vo. (NewYork, 1906) net 86
The A. B. C. of the Steam Engine, with adescription of the Automatic Governor. ByJ. P. Lisk. 6 plates, 12mo. (New York, 1902) net 20
Valve Setting Record Book. By P. A. Low. 8vo,boards 16
The Lay-out of Corliss Valve Gears. By S. A.Moss. Second edition, 3 plates, 108 pp. 18mo,boards. (New York, 1906) net 20
Steam Boilers, their Management and Working.By J. Peattie. Fifth edition, 35 illus. 230 pp.crown 8vo. (1906) net 46
Treatise on the Richards Steam Engine Indicator.By C. T. Porter. Sixth edition, 3 platesand 73 diagrams, 285 pp. 8vo. (1902) 90
Practical Treatise on the Steam Engine. ByA. Rigg. Second edition, 103 plates, 378 pp.demy 4to. (1894)150
Slide Valve Simply Explained. By W. J. Tennant.Revised by J. H. Kinealy. 41 illus.83 pp. crown 8vo. (New York, 1899) net 46
Shaft Governors. By W. Trinks and C. Hoosum.27 illus. 97 pp. 18mo, boards. (New York, 1905) net 20
Slide and Piston Valve Geared Steam Engines.By W. H. Uhland. 47 plates and 314 illus. 155 pp.Two vols. folio, half morocco. (1882)1160
How to run Engines and Boilers. By E. P.Watson. Fifth edition, 31 illus. 160 pp. crown8vo. (New York, 1904) 36
Position Diagram of Cylinder with Meyer Cut-off.By W. H. Weightman. On card. (NewYork) net 10
Practical Method of Designing Slide ValveGearing. By E. J. Welch. 69 diagrams, 283 pp.Crown 8vo. (1890) 60
Elements of Mechanics. By T. W. Wright.Illustrated, 372 pp. 8vo. (New York, 1896) 106

METALLURGY.

Iron and Steel Manufacture.

Life of Railway Axles. By T. Andrews. 8vo,sewed. (1895) 10
Microscopic Internal Flaws in Steel Rails andPropeller Shafts. By T. Andrews. 8vo, sewed.(1896) 10
Microscopic Internal Flaws, Inducing Fracturein Steel. By T. Andrews. 8vo, sewed. (1896) 20
Relations between the Effects of Stresses slowlyapplied and of Stresses suddenly applied in thecase of Iron and Steel: Comparative Testswith Notched and Plain Bars. By P. Breuil.23 plates and 60 illus. 151 pp. 8vo. (1904) net 80
Brassfounders’ Alloys. By J. F. Buchanan. Illustrated,129 pp. crown 8vo. (1905) net 46
Foundry Nomenclature. The Moulder’s PocketDictionary and concise guide to Foundry Practice.By John F. Buchanan. Illustrated, 225 pp.crown 8vo. (1903) net 50
American Standard Specifications for Steel. ByA. L. Colby. Second edition, revised, 103 pp.crown 8vo. (New York, 1902) net 50
Galvanised Iron: its Manufacture and Uses. ByJ. Davies. 139 pp. 8vo. (1899) net 50
Management of Steel. By G. Ede. Seventhedition, 216 pp. crown 8vo. (1903) 50
Galvanising and Tinning, with a special Chapteron Tinning Grey Iron Castings. By W. T.Flanders. 8vo. (New York) net 86
Cupola Furnace. A practical treatise on theConstruction and Management of FoundryCupolas. By E. Kirk. Second edition, 78 illus.450 pp. demy 8vo. (New York, 1903) net 150
Practical Notes on Pipe Founding. By J. W.Macfarlane. 15 plates, 148 pp. 8vo. 126
Atlas of Designs concerning Blast FurnacePractice. By M. A. Pavloff. 127 plates, 14 in.by 10½ in. oblong, sewed. (1902) net110
Album of Drawings relating to the Manufactureof Open Hearth Steel. By M. A. Pavloff.
Part I. Open Hearth Furnaces. 52plates, 14 in. by 10½ in. oblong folio inportfolio. (1904) net 		120
Modern Foundry Practice. Including revisedsubject matter and tables from Spretson’s“Casting and Founding.” By J. Sharp. Secondedition, 272 illus. 759 pp. 8vo. (1905) net110
Roll Turning for Sections in Steel and Iron.By A. Spencer. Second edition, 78 plates, 4to.(1894)1100