Chapter IV: Part 2: 73 pp. (1909) net 1 6

=Electrical Instruments and Testing.= By N. H. SCHNEIDER.
Third edition. 133 illus. 239 pp. crown 8vo. (_New York,
1907_) _net_ 4 6

=Experimenting with Induction Coils.= By N. H. SCHNEIDER. 26
illus. 73 pp. crown 8vo, limp. (_New York, 1906_) _net_ 1 6

=Study of Electricity for Beginners.= By N. H. SCHNEIDER. 54
illus. 88 pp. crown 8vo, limp. (_New York, 1905_) _net_ 1 6

=Practical Electrics=: a Universal Handybook on Every Day
Electrical Matters. Seventh edition, 126 illus. 135 pp. 8vo.
(_New York, 1902_) _net_ 1 6

=The Voltaic Accumulator=: an elementary treatise. By E.
REYNIER. Translated from the French by J. A. BERLY. 62 illus.
202 pp. 8vo. 9 0

=Dry Batteries=: how to Make and Use them. By a DRY BATTERY
EXPERT. With additional notes by N. H. SCHNEIDER. 30 illus.
59 pp. crown 8vo, sewed. (_New York, 1905_) _net_ 1 0

=The Diseases of Electrical Machinery.= By E. SCHULZ. Edited,
with a Preface, by Prof. S. P. THOMPSON. 42 illus. 84 pp.
crown 8vo. _net_ 2 0

=Electric Toy-Making.= By T. O. SLOANE. Fifteenth edition, 70
illus. 183 pp. crown 8vo. (_New York, 1903_) _net_ 4 6

=Electricity Simplified.= By T. O. SLOANE. Tenth edition, 29
illus. 158 pp. crown 8vo. (_New York, 1901_) _net_ 4 6

=How to become a Successful Electrician.= By T. O. SLOANE.
Third edition, illustrated, crown 8vo. (_New York, 1899_)
_net_ 4 6

=Electricity=: its Theory, Sources and Applications. By J.
T. SPRAGUE. Third edition, 109 illus. 658 pp. crown 8vo.
(_1892_) _net_ 7 6

=Telegraphic Connections.= By C. THOM and W. H. JONES. 20
plates, 59 pp. oblong 8vo. (_New York, 1892_) _net_ 3 6

=Röntgen Rays= and Phenomena of the Anode and Cathode. By E.
P. THOMPSON and W. A. ANTHONY. 105 illus. 204 pp. 8vo. (_New
York, 1896_) _net_ 4 6

=Dynamo Electric Machinery.= By Prof. S. P. THOMPSON. Seventh
edition, demy 8vo. (FINSBURY TECHNICAL MANUAL.)
Vol. I. =Continuous-Current Machinery.= With 4 coloured
and 30 folding plates, 573 illus. 984 pp. (_1904_) _net_ 1 10 0
Vol. II. =Alternating Current Machinery.= 15 coloured
and 24 folding plates, 546 illus. 900 pp. (_1905_) _net_ 1 10 0

=Design of Dynamos= (Continuous Currents). By Prof. S. P.
THOMPSON. 4 coloured and 8 folding plates, 243 pp. demy 8vo.
(_1903_) _net_ 12 0

=Schedule for Dynamo Design=, issued with the above. 6_d._
each, 4_s._ per doz., or 18_s._ per 100 _net_

=Curves of Magnetic Data for Various Materials.= A reprint
on transparent paper for office use of Plate L from Dynamo
Electric Machinery, and measuring 25 in. by 16 in. _net_ 0 7

=The Electromagnet.= By C. R. UNDERHILL. 67 illus. 159 pp.
crown 8vo. (_New York, 1903_) _net_ 6 6

=Practical Guide to the Testing of Insulated Wires and
Cables.= By H. L. WEBB. Fifth edition, 38 illus. 118 pp.
crown 8vo. (_New York, 1902_) _net_ 4 6

FOREIGN EXCHANGE.

=English Prices with Russian Equivalents.= By A. ADIASSEWICH.
182 pp. fcap. 32mo, roan. (_1908_) _net_ 1 0

=English Prices with German Equivalents.= English prices
per lb., with equivalents in marks per kilogramme. By ST.
KOCZOROWSKI. 95 pp. fcap. 32mo, roan. (_1909_) _net_ 1 0

=English Prices with French Equivalents.= English prices per
lb. to francs per kilogramme. By H. P. MCCARTNEY. 97 pp.
32mo, roan. (_1907_) _net_ 1 0

=Principles of Foreign Exchange.= By E. MATHESON. Fourth
edition, 54 pp. 8vo, sewed. (_1905_) _net_ 0 3

GAS AND OIL ENGINES.

=The Theory of the Gas Engine.= By D. CLERK. Edited by F. E.
IDELL. Third edition, 19 illus. 180 pp. 18mo, boards. (_New
York, 1903_) _net_ 2 0

=The Design and Construction of Oil Engines.= By A. H.
GOLDINGHAM. Second edition, 108 illus. 255 pp. crown 8vo.
(_New York, 1904_) _net_ 6 6

=Gas Engine in Principle and Practice.= By A. H. GOLDINGHAM.
107 illus. 195 pp. 8vo, cloth. (_New York, 1907_) _net_ 6 6

=Practical Hand-Book on the Care and Management of Gas
Engines.= By G. LIECKFELD. Third edition, square 16mo. (_New
York, 1896_) 3 6

=Elements of Gas Engine Design.= By S. A. MOSS. 197 pp. 18mo,
boards. (_New York, 1907_) _net_ 2 0

=Gas Engines and their Troubles.= By E. W. ROBERTS, with
chapters on the Design and Construction of Launches, by PROF.
W. F. DURAND. 38 illus. 143 pp. crown 8vo. (_New York, 1903_)
_net_ 4 6

=Gas and Petroleum Engines.= A Manual for Students and
Engineers. (FINSBURY TECHNICAL MANUAL.) By Prof. W. ROBINSON.
_Third edition in preparation_

GAS LIGHTING.

=Gas Analyst’s Manual= (incorporating Hartley’s “Gas
Analyst’s Manual” and “Gas Measurement”). By J. ABADY. 102
illustrations, 576 pp. demy 8vo. (_1902_) _net_ 18 0

=Gas Works=: their Arrangement, Construction, Plant and
Machinery. By F. COLYER. 31 folding plates, 134 pp. 8vo.
(_1884_) _net_ 8 6

=Transactions of the Institution of Gas Engineers.= Edited by
WALTER T. DUNN, _Secretary_. Published annually. 8vo. _net_ 10 6

=Lighting by Acetylene.= By F. DYE. 75 illus. 200 pp. crown
8vo. (_1902_) _net_ 6 0

=A Comparison of the English and French Methods of
Ascertaining the Illuminating Power of Coal Gas.= By A. J.
VAN EIJNDHOVEN. Illustrated, crown 8vo. (_1897_) 4 0

=Gas Lighting and Gas Fitting.= By W. P. GERHARD. Second
edition, 190 pp. 18mo, boards. (_New York, 1894_) _net_ 2 0

=A Treatise on the Comparative Commercial Values of Gas
Coals and Cannels.= By D. A. GRAHAM. 3 plates, 100 pp. 8vo.
(_1882_) 4 6

=The Gas Engineer’s Laboratory Handbook.= By J. HORNBY.
Second edition, 69 illus. 328 pp. crown 8vo. (_1902_) _net_ 6 0

HISTORICAL AND BIOGRAPHICAL.

=Extracts from the Private Letters of the late Sir William
Fothergill Cooke=, 1836-9, relating to the Invention and
Development of the Electric Telegraph; also a Memoir by
LATIMER CLARK. Edited by F. H. WEBB. Sec. Inst. E. E. 8vo.
(_1895_) 3 0

=A Chronology of Inland Navigation= in Great Britain. By H.
R. DE SALIS. Crown 8vo. (_1897_) 4 6

=A History of Electric Telegraphy= to the year 1837. By J. J.
FAHIE. 35 illus. 542 pp. crown 8vo. (_1889_) 2 0

=History and Development of Steam Locomotion on Common
Roads.= By W. FLETCHER. 109 illus. 288 pp. 8vo. 5 0

=Life as an Engineer=: its Lights, Shades, and Prospects.
By J. W. C. HALDANE. 23 plates, 338 pp. crown 8vo. (_1905_)
_net_ 5 0

=Philipp Reis=, Inventor of the Telephone: a Biographical
Sketch. By Prof. S. P. THOMPSON. 8vo, cloth. (_1883_) 7 6

=The Development of the Mercurial Air Pump.= By Prof. S. P.
THOMPSON. Illustrated, royal 8vo, sewed. (_1888_) 1 6

HOROLOGY.

=Watch and Clock Maker’s Handbook=, Dictionary and Guide. By
F. J. BRITTEN. Tenth edition, 450 illus. 492 pp. crown 8vo.
(_1902_) _net_ 5 0

=The Springing and Adjusting of Watches.= By F. J. BRITTEN.
75 illus. 152 pp. crown 8vo. (_1898_) _net_ 3 0

=Prize Essay on the Balance Spring= and its Isochronal
Adjustments. By M. IMMISCH. 7 illus. 50 pp. crown 8vo.
(_1872_) 2 6

HYDRAULICS AND HYDRAULIC MACHINERY.

(_See also_ WATER SUPPLY.)

=Pumps=: Historically, Theoretically and Practically
Considered. By P. R. BJÖRLING. Second edition, 156 illus. 234
pp. crown 8vo. (_1895_) 7 6

=Pump Details.= By P. R. BJÖRLING. 278 illus. 211 pp. crown
8vo. (_1892_) 7 6

=Pumps and Pump Motors=: A Manual for the use of Hydraulic
Engineers. By P. R. BJÖRLING. Two vols. 261 plates, 369 pp.
royal 4to. (_1895_) _net_ 1 10 0

=Practical Handbook on Pump Construction.= By P. R. BJÖRLING.
Second edition, 9 plates, 90 pp. crown 8vo. (_1904_) 5 0

=Water or Hydraulic Motors.= By P. R. BJÖRLING. 206 illus.
287 pp. crown 8vo. (_1903_) 9 0

=Hydraulic Machinery=, with an Introduction to Hydraulics.
By R. G. BLAINE. Second edition with 307 illus. 468 pp. 8vo.
(FINSBURY TECHNICAL MANUAL). (_1905_) _net_ 14 0

=Practical Hydraulics.= By T. BOX. Fifteenth edition, 8
plates, 88 pp. crown 8vo. (_1909_) _net_ 5 0

=Hydraulic, Steam, and Hand Power Lifting and Pressing
Machinery.= By F. COLYER. Second edition, 88 plates, 211 pp.
imperial 8vo. (_1892_) _net_ 10 6

=Pumps and Pumping Machinery.= By F. COLYER.
Vol. I. Second edition, 53 plates, 212 pp. 8vo. (_1892_)
_net_ 10 6
Vol. II. Second edition, 48 plates, 169 pp. 8vo. (_1900_)
_net_ 10 6

=Construction of Horizontal and Vertical Waterwheels.= By W.
CULLEN. Second edition, small 4to. (_1871_) 5 0

=Tables giving Hydraulic Mean Depth and Area of Circular
Sewers.= By R. DE SALIS. 8vo, sewed 1 0

=Donaldson’s Poncelet Turbine= and Water Pressure Engine and
Pump. By W. DONALDSON. 4to. (_1883_) 5 0

=Principles of Construction and Efficiency of Waterwheels.=
By W. DONALDSON. 13 illus. 94 pp. 8vo. (_1876_) 5 0

=Practical Hydrostatics and Hydrostatic Formulæ.= By E. S.
GOULD. 27 illus. 114 pp. 18mo, boards. (_New York, 1903_)
_net_ 2 0

=Hydraulic and other Tables= for purposes of Sewerage and
Water Supply. By T. HENNELL. Third edition, 70 pp. crown 8vo.
(_1908_) _net_ 4 6

=Hydraulic Tables= for finding the Mean Velocity and
Discharge in Open Channels. By T. HIGHAM. Second edition, 90
pp. super-royal 8vo. (_1898_) 7 6

=Tables for Calculating the Discharge of Water= in Pipes
for Water and Power Supplies. Indexed at side for ready
reference. By A. E. SILK. 63 pp. crown 8vo. (_1899_) 5 0

=Simple Hydraulic Formulæ.= By T. W. STONE. 9 plates, 98 pp.
crown 8vo. (_1881_) 4 0

INDUSTRIAL CHEMISTRY AND MANUFACTURES.

=Perfumes and their Preparation.= By G. W. ASKINSON.
Translated from the Third German Edition by I. FUEST. Third
edition, 32 illus. 312 pp. 8vo. (_New York, 1907_) _net_ 12 6

=Brewing Calculations=, Gauging and Tabulation. By C. H.
BATER. 340 pp. 64mo, roan, gilt edges. (_1897_) _net_ 1 6

=A Pocket Book for Chemists=, Chemical Manufacturers,
Metallurgists, Dyers, Distillers, etc. By T. BAYLEY. Seventh
edition, 550 pp. royal 32mo, roan, gilt edges _net_ 5 0

=Practical Receipts= for the Manufacturer, the Mechanic, and
for Home use. By Dr. H. R. BERKELEY and W. M. WALKER. 250 pp.
demy 8vo. (_1902_) _net_ 7 6

=A Treatise on the Manufacture of Soap and Candles=,
Lubricants and Glycerine. By W. L. CARPENTER and H. LEASK.
Second edition, 104 illus. 456 pp. crown 8vo. (_1895_) 12 6

=A Text Book of Paper Making.= By C. F. CROSS and E. J.
BEVAN. Third edition, 97 illus. 411 pp. crown 8vo. (_1907_)
_net_ 12 6

=C.B.S. Standard Units and Standard Paper Tests.= By C. F.
CROSS, E. J. BEVAN, C. BEADLE and R. W. SINDALL. 25 pp. crown
4to. (_1903_) _net_ 2 6

=Soda Fountain Requisites.= A Practical Receipt Book for
Druggists, Chemists, etc. By G. H. DUBELLE. Third edition,
157 pp. crown 8vo. (_New York, 1905_) _net_ 4 6

=The Chemistry of Fire= and Fire Prevention. By H. and H.
INGLE. 45 illus. 290 pp. crown 8vo. (_1900_) 9 0

=Ice-Making Machines.= By M. LEDOUX and others. Sixth
edition. 190 pp. 18mo, boards. (_New York, 1906_) _net_ 2 0

=Brewing with Raw Grain.= By T. W. LOVIBOND. 75 pp. crown
8vo. (_1883_) 5 0

=Sugar, a Handbook for Planters and Refiners.= By the late J.
A. R. NEWLANDS and B. E. R. NEWLANDS. 236 illus. 876 pp. demy
8vo. (_London, 1909_) _net_ 1 5 0

=Principles of Leather Manufacture.= By Prof. H. R. PROCTER.
101 illus. 520 pp. medium 8vo. _net_ 18 0

=Leather Industries Laboratory Handbook= of Analytical and
Experimental methods. By H. R. PROCTER. Second edition, 4
plates, 46 illus. 450 pp. demy 8vo. (_1908_) _net_ 18 0

=Theoretical and Practical Ammonia Refrigeration.= By I. I.
REDWOOD. Sixth thousand, 15 illus. 146 pp. square 16mo. (_New
York, 1909_) _net_ 4 6

=Breweries and Maltings.= By G. SCAMMELL and F. COLYER.
Second edition, 20 plates, 178 pp. 8vo. (_1880_) _net_ 6 0

=Factory Glazes for Ceramic Engineers.= By H. RUM-BELLOW.
Folio. Series A, Leadless Sanitary Glazes. (_1908_) _net_ 2 2 0

=Text Book of Physical Chemistry.= By C. L. SPEYERS. 224 pp.
demy 8vo. (_New York, 1898_) 9 0

=Spons’ Encyclopædia of the Industrial Arts=, Manufactures
and Commercial Products. 1500 illus. 2100 pp. super-royal 8vo.
In 2 Vols. cloth 3 10 0

=Pigments, Paints and Painting.= By G. TERRY. 49 illus. 392
pp. crown 8vo. (_1893_) 7 6

=Tables for the Quantitative Estimation of the Sugars.= By E.
WEIN and W. FREW. Crown 8vo. (_1896_) 6 0

=Workshop Receipts.= For the use of Manufacturers, Mechanics
and Scientific Amateurs. New and thoroughly revised edition,
crown 8vo. (_1909_) _each net_ 3 0
Vol. I. Acetylene Lighting _to_ Drying. 223 illus.
532 pp.
Vol. II. Dyeing _to_ Japanning. 259 illus. 540 pp.
Vol. III. Jointing Pipes _to_ Pumps.
Vol. IV.

=Practical Handbook on the Distillation of Alcohol from Farm
Products.= By F. B. WRIGHT. Second edition, 60 illus. 271 pp.
crown 8vo. (_New York, 1907_) _net_ 4 6

=The Manufacture of Chocolate= and other Cacao Preparations.
By P. ZIPPERER. Second edition, 87 illus. 280 pp. royal 8vo.
(_1902_) _net_ 16 0

IRRIGATION.

=The Irrigation Works of India.= By R. B. BUCKLEY. Second
edition, with coloured maps and plans. 336 pp. 4to, cloth.
(_1905_) _net_ 2 2 0

=Facts, Figures, and Formulæ for Irrigation Engineers.= By R.
B. BUCKLEY. With illus. 239 pp. large 8vo. (_1908_) _net_ 10 6

=Irrigated India.= By Hon. ALFRED DEAKIN. With Map, 322 pp.
8vo. (_1893_) 8 6

=Indian Storage Reservoirs=, with Earthen Dams. By W. L.
STRANGE. 14 plates and 53 illus. 379 pp. demy 8vo. (_1904_)
_net_ 1 1 0

=Irrigation Farming.= By L. M. WILCOX. Revised edition, 113
illus. 494 pp. crown 8vo. (_New York_) _net_ 8 6

=Egyptian Irrigation.= By Sir W. WILLCOCKS. Second edition
out of Print.
_A few copies of the First Edition (1889) are still to
be had. Price 15s. net._

=The Nile Reservoir Dam at Assuân=, and After. By Sir W.
WILLCOCKS. Second edition, 13 plates, super-royal 8vo.
(_1903_) _net_ 6 0

=The Assuân Reservoir and Lake Moeris.= By Sir W. WILLCOCKS.
With text in English, French and Arabic. 5 plates, 116 pp.
super-royal 8vo. (_1904_) _net_ 5 0

=The Nile in 1904.= By Sir W. WILLCOCKS. 30 plates, 200 pp.
super-royal 8vo. (_1904_) _net_ 9 0

LOGARITHM TABLES.

=Aldum’s Pocket Folding Mathematical Tables.= Four-figure
logarithms, and Anti-logarithms, Natural Sines, Tangents,
Cotangents, Cosines, Chords and Radians for all angles from 1
to 90 degrees. On folding card. _Net 4d._ 20 copies, _net 6s._

=Tables of Seven-figure Logarithms= of the Natural Numbers
from 1 to 108,000. By C. BABBAGE. Stereotype edition, 8vo. 7 6

=Short Logarithmic= and other Tables. By W. C. UNWIN. Fourth
edition, small 4to 3 0

=A. B. C. Five-figure Logarithms= for general use, with
lateral index for ready reference. By C. J. WOODWARD. Second
edition, with cut lateral Index, 116 pp. 12mo, limp leather
_net_ 3 0

MARINE ENGINEERING AND NAVAL ARCHITECTURE.

=Marine Propellers.= By S. W. BARNABY. Fifth edition, 5
plates, 56 illus. 185 pp. demy 8vo. (_1908_) _net_ 10 6

=Marine Engineer’s Record Book=: Engines. By B. C. BARTLEY.
8vo, roan _net_ 5 0

=The Engineer’s and Draughtsman’s Data Book= for Workshop and
Office Use. Third edition, crown 8vo, roan 3 0

=Yachting Hints=, Tables and Memoranda. By A. C. FRANKLIN.
Waistcoat pocket size, 103 pp. 64mo, roan, gilt edges _net_ 1 0
Ditto ditto in celluloid case _net_ 1 6

=Steamship Coefficients, Speeds and Powers.= By C. F. A.
FYFE. 31 plates, 280 pp. fcap. 8vo, leather. (_1907_) _net_ 10 6

=Steamships and Their Machinery=, from first to last. By J.
W. C. HALDANE. 120 illus. 532 pp. 8vo. (_1893_) 15 0

=Tables for Constructing Ships’ Lines.= By A. HOGG. Second
edition, 8vo. 7 0

=Submarine Boats.= By G. W. HOVGAARD. 2 plates, 98 pp. crown
8vo. (_1887_) 5 0

=Tabulated Weights= of Angle, Tee, Bulb, Round, Square,
and Flat Iron and Steel for the use of Naval Architects,
Ship-builders, etc. By C. H. JORDAN. Fifth edition, 579 pp.
royal 32mo, French morocco, gilt edges. (_1896_) 7 6

=Particulars of Dry Docks=, Wet Docks, Wharves, etc. on the
River Thames. Compiled by C. H. JORDAN. Second edition, 7
coloured charts, 103 pp. oblong 8vo. (_1904_) _net_ 2 6

=Marine Transport of Petroleum.= By H. LITTLE. 66 illus. 263
pp. crown 8vo. (_1890_) 10 6

=Questions and Answers for Marine Engineers=, with a
Practical Treatise on Breakdowns at Sea. By T. LUCAS. 12
folding plates, 515 pp. gilt edges, crown 8vo. (_New York,
1902_) _net_ 8 0

=Reed’s Examination Papers for Extra First Class Engineers.=
Fourth edition, 14 plates and 188 illus. 550 pp. 8vo.
(_1902_) _net_ 18 0

=Reed’s Engineers’ Handbook to the Board of Trade
Examinations= for certificates of Competency as First and
Second Class Engineers. Nineteenth edition, 37 plates, 358
illus. 696 pp. 8vo. _net_ 14 0

=Reed’s Polyglot Guide to the Marine Engine=, in English,
French, German and Norsk. Second edition, oblong 8vo.
(_1900_) _net_ 6 0

=Reed’s Marine Boilers.= Second edition, crown 8vo. _net_ 4 6

=Reed’s Useful Hints to Sea-going Engineers.= Fourth edition,
8 plates, 50 illus. 312 pp. crown 8vo. (_1903_) _net_ 3 6

=Naval Architects’ and Engineers’ Data Book.= By T. H.
WATSON. Fcap. 8vo, cloth _net_ 3 6

MATERIALS.

=Practical Treatise on the Strength of Materials.= By T. BOX.
Fourth edition, 27 plates, 536 pp. 8vo. (_1902_) _net_ 12 6

=Treatise on the Origin, Progress, Prevention and Cure of Dry
Rot in Timber.= By T. A. BRITTON. 10 plates, 519 pp. crown
8vo. (_1875_) 7 6

=Twenty Years’ Practical Experience of Natural Asphalt= and
Mineral Bitumen. By W. H. DELANO. 33 illus. 73 pp. crown 8vo,
parchment. (_1893_) 2 0

=Stone=: how to get it and how to use it. By Major-Gen. C. E.
LUARD, R.E. 8vo, sewed. (_1890_) 2 0

=Testing of Pipes= and Pipe-joints in the Open Trenches. By
M. M. PATERSON. 8vo, sewed (_1879_) 2 0

=Lubricants, Oils and Greases.= By I. I. REDWOOD. 3 plates,
8vo. (_1898_) 4 6

=Practical Treatise on Mineral Oils= and their By-Products.
By I. I. REDWOOD. 67 illus. 336 pp. demy 8vo. (_1897_) 15 0

=Silico-Calcareous Sandstones=, or Building Stones from
Quartz, Sand and Lime. By E. STOFFLER. 5 plates, 8vo, sewed.
(_1901_) _net_ 4 0

=Proceedings of the International Association for Testing
Materials.= English edition. Issued irregularly. Price varies.

MATHEMATICS.

=Imaginary Quantities.= By M. ARGAND. Translated by PROF.
HARDY. 18mo, boards. (_New York_) _net_ 2 0

=Text Book of Practical Solid Geometry.= By E. H. DE V.
ATKINSON. Revised by MAJOR B. R. WARD, R.E. Second edition,
17 plates, 8vo. (_1901_) 7 6

=Quick and Easy Methods of Calculating=, and the Theory and
Use of the Slide Rule. By R. G. BLAINE. Third edition, 6
illus. 152 pp. 16mo, leather cloth. (_1907_) 2 6

=Symbolic Algebra=, or the Algebra of Algebraic Numbers. By
W. CAIN. 18mo, boards. (_New York_) _net_ 2 0

=Nautical Astronomy.= By J. H. COLVIN. 127 pp. crown, 8vo.
(_1901_) _net_ 2 6

=Chemical Problems.= By J. C. FOYE. Fourth edition, 141 pp.
18mo, boards. (_New York, 1898_) _net_ 2 0

=Primer of the Calculus.= By E. S. GOULD. Second edition, 24
illus. 122 pp. 18mo, boards. (_New York, 1899_) _net_ 2 0

=Elementary Treatise on the Calculus= for Engineering
Students. By J. GRAHAM. Third edition, 276 pp. crown 8vo.
(_1905_). (FINSBURY TECHNICAL MANUAL) 7 6

=Manual of the Slide Rule.= By F. A. HALSEY. Second edition,
31 illus. 84 pp. 18mo, boards. (_New York, 1901_) _net_ 2 0

=Reform in Chemical and Physical Calculations.= By C. J. T.
HANSSEN. 4to. (_1897_) _net_ 6 6

=Algebra Self-Taught.= By P. HIGGS. Third edition, 104 pp.
crown 8vo. (_1903_) 2 6

=Galvanic Circuit investigated Mathematically.= By G. S. OHM.
Translated by WILLIAM FRANCIS. 269 pp. 18mo, boards. (_New
York, 1891_) _net_ 2 0

=Elementary Practical Mathematics.= By M. T. ORMSBY. 420 pp.
demy 8vo. (_1900_) _net_ 7 6

=Elements of Graphic Statics.= By K. VON OTT. Translated by
G. S. CLARKE. 93 illus. 128 pp. crown 8vo. (_1901_) 5 0

=Figure of the Earth.= By F. C. ROBERTS. 18mo, boards. (_New
York_) _net_ 2 0

=Arithmetic of Electricity.= By T. O’C. SLOANE. Thirteenth
edition, crown 8vo. (_New York, 1901_) _net_ 4 6

=Graphic Method for Solving certain Questions in Arithmetic
or Algebra.= By G. L. VOSE. Second edition with 28 illus. 62
pp. 18mo, boards. (_New York, 1902_) _net_ 2 0

=Problems in Electricity.= A Graduated Collection comprising
all branches of Electrical Science. By R. WEBER. Translated
from the French by E. A. O’KEEFE. 34 illus. 366 pp. crown
8vo. (_1902_) _net_ 7 6

MECHANICAL ENGINEERING.

Steam Engines and Boilers, etc.

=Handbook for Mechanical Engineers.= By HY. ADAMS. Fourth
edition, 426 pp. crown 8vo. (_1897_) _net_ 4 6

=Appleby’s Handbooks of Machinery.= Many illustrations, 8vo.
Sections 2, 3, 4 and 6 _each_ 3 6
Section 5 5 0