CONTENTS:

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._

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