Wrinkles in Electric Lighting Part 7

Symbols and the Signs of Operation--The Equation and the Unknown Quant.i.ty--Positive and Negative Quant.i.ties--Multiplication-- Involution--Exponents--Negative Exponents--Roots, and the Use of Exponents as Logarithms--Logarithms--Tables of Logarithms and Proportionate Parts--Transformation of System of Logarithms-- Common Uses of Common Logarithms--Compound Multiplication and the Binomial Theorem--Division, Fractions, and Ratio--Continued Proportion--The Series and the Summation of the Series--Limit of Series--Square and Cube Roots--Equations--List of Formulae, etc.

_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, 5_l._ 8_s._ Complete in 3 vols., cloth, 5_l._ 5_s._ Bound in a superior manner, half-morocco, top edge gilt, 3 vols., 6_l._ 12_s._

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_Canoe and Boat Building_: a complete Manual for Amateurs, containing plain and comprehensive directions for the construction of Canoes, Rowing and Sailing Boats, and Hunting Craft. By W. P. STEPHENS. _With numerous ill.u.s.trations and 24 plates of Working Drawings._ Crown 8vo, cloth, 7_s._ 6_d._

_Proceedings of the National Conference of Electricians, Philadelphia_, October 8th to 13th, 1884. 18mo, cloth, 3_s._

_Dynamo-Electricity_, its Generation, Application, Transmission, Storage, and Measurement. By G. B. PRESCOTT. _With 545 ill.u.s.trations._ 8vo, cloth, 1_l._ 1_s._

_Domestic Electricity for Amateurs._ Translated from the French of E.

HOSPITALIER, Editor of "L'Electricien," by C. J. WHARTON, a.s.soc. Soc.

Tel. Eng. _Numerous ill.u.s.trations._ Demy 8vo, cloth, 9_s._

CONTENTS:

1. Production of the Electric Current--2. Electric Bells-- 3. Automatic Alarms--4. Domestic Telephones--5. Electric Clocks-- 6. Electric Lighters--7. Domestic Electric Lighting--8. Domestic Application of the Electric Light--9. Electric Motors-- 10. Electrical Locomotion--11. Electrotyping, Plating, and Gilding--12. Electric Recreations--13. Various applications-- Workshop of the Electrician.

_Wrinkles in Electric Lighting._ By VINCENT STEPHEN. _With ill.u.s.trations._ 18mo, cloth, 2_s._ 6_d._

CONTENTS:

1. The Electric Current and its production by Chemical means-- 2. Production of Electric Currents by Mechanical means-- 3. Dynamo-Electric Machines--4. Electric Lamps--5. Lead-- 6. Ship Lighting.

_The Practical Flax Spinner_; being a Description of the Growth, Manipulation, and Spinning of Flax and Tow. By LESLIE C. MARSHALL, of Belfast. _With ill.u.s.trations._ 8vo, cloth, 15_s._

_Foundations and Foundation Walls for all cla.s.ses of Buildings_, Pile Driving, Building Stones and Bricks, Pier and Wall construction, Mortars, Limes, Cements, Concretes, Stuccos, &c. _64 ill.u.s.trations_. By G. T. POWELL and F. BAUMAN. 8vo, cloth, 10_s._ 6_d._

_Manual for Gas Engineering Students._ By D. LEE. 18mo, cloth 1_s._

_Hydraulic Machinery, Past and Present._ A Lecture delivered to the London and Suburban Railway Officials' a.s.sociation. By H. ADAMS, Mem.

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_Twenty Years with the Indicator._ By THOMAS PRAY, Jun., C.E., M.E., Member of the American Society of Civil Engineers. 2 vols., royal 8vo, cloth, 12_s._ 6_d._

_Annual Statistical Report of the Secretary to the Members of the Iron and Steel a.s.sociation on the Home and Foreign Iron and Steel Industries in 1884._ Issued March 1885. 8vo, sewed, 5_s._

_Bad Drains, and How to Test them_; with Notes on the Ventilation of Sewers, Drains, and Sanitary Fittings, and the Origin and Transmission of Zymotic Disease. By R. HARRIS REEVES. Crown 8vo, cloth, 3_s._ 6_d._

_Standard Practical Plumbing_; being a complete Encyclopaedia for Practical Plumbers and Guide for Architects, Builders, Gas Fitters, Hot-water Fitters, Ironmongers, Lead Burners, Sanitary Engineers, Zinc Workers, &c. _Ill.u.s.trated by over 2000 engravings._ By P. J. DAVIES.

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_Pneumatic Transmission of Messages and Parcels between Paris and London, via Calais and Dover._ By J. B. BERLIER, C.E. Small folio, sewed, 6_d._

_List of Tests_ (_Reagents_), arranged in alphabetical order, according to the names of the originators. Designed especially for the convenient reference of Chemists, Pharmacists, and Scientists. By HANS M. WILDER.

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_Ten Years Experience in Works of Intermittent Downward Filtration._ By J. BAILEY DENTON, Mem. Inst. C.E. Second edition, with additions. Royal 8vo, sewed, 4_s._

_A Treatise on the Manufacture of Soap and Candles, Lubricants and Glycerin._ By W. LANT CARPENTER, B.A., B.Sc. (late of Messrs. C. Thomas and Brothers, Bristol). _With ill.u.s.trations._ Crown 8vo, cloth, 10_s._ 6_d._

_The Stability of Ships explained simply, and calculated by a new Graphic method._ By J. C. SPENCE, M.I.N.A. 4to, sewed, 3_s._ 6_d._

_Steam Making, or Boiler Practice._ By CHARLES A. SMITH, C.E. 8vo, cloth, 10_s._ 6_d._

CONTENTS:

1. The Nature of Heat and the Properties of Steam--2. Combustion.-- 3. Externally Fired Stationary Boilers--4. Internally Fired Stationary Boilers--5. Internally Fired Portable Locomotive and Marine Boilers--6. Design, Construction, and Strength of Boilers-- 7. Proportions of Heating Surface, Economic Evaporation, Explosions--8. Miscellaneous Boilers, Choice of Boiler Fittings and Appurtenances.

_The Fireman's Guide_; a Handbook on the Care of Boilers. By TEKNOLOG.

foreningen T. I. Stockholm. Translated from the third edition, and revised by KARL P. DAHLSTROM, M.E. Second edition. Fcap. 8vo, cloth, 2_s._

_A Treatise on Modern Steam Engines and Boilers_, including Land Locomotive, and Marine Engines and Boilers, for the use of Students. By FREDERICK COLYER, M. Inst. C.E., Mem. Inst M.E. _With 36 plates._ 4to, cloth, 25_s._

CONTENTS:

1. Introduction--2. Original Engines--3. Boilers--4. High-Pressure Beam Engines--5. Cornish Beam Engines--6. Horizontal Engines--7.

Oscillating Engines--8. Vertical High-Pressure Engines--9. Special Engines--10. Portable Engines--11. Locomotive Engines--12. Marine Engines.

_Steam Engine Management_; a Treatise on the Working and Management of Steam Boilers. By F. COLYER, M. Inst. C.E., Mem. Inst. M.E. 18mo, cloth, 2_s._

_Land Surveying on the Meridian and Perpendicular System._ By WILLIAM PENMAN, C.E. 8vo, cloth, 8_s._ 6_d._