Symbols and the Signs of Operation--The Equation and the Unknown Quantity--Positive and Negative Quantities--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._
_Notes in Mechanical Engineering._ Compiled principally for the use of the Students attending the Classes on this subject at the City of London College. By HENRY ADAMS, Mem. Inst. M.E., Mem. Inst. C.E., Mem. Soc. of Engineers. Crown 8vo, cloth, 2_s._ 6_d._
_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 illustrations 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 illustrations._ 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, Assoc. Soc.
Tel. Eng. _Numerous illustrations._ 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 illustrations._ 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 illustrations._ 8vo, cloth, 15_s._
_Foundations and Foundation Walls for all classes of Buildings_, Pile Driving, Building Stones and Bricks, Pier and Wall construction, Mortars, Limes, Cements, Concretes, Stuccos, &c. _64 illustrations_. 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' Association. By H. ADAMS, Mem.
Inst. C.E. _Folding plate._ 8vo, sewed, 1_s._
_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 Association 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. _Illustrated 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 illustrations._ 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._