A System of Easy Lettering

SPON & CHAMBERLAIN, 12 CORTLANDT STREET, NEW YORK. 1897.
Copyright, 1887, by Wm. Chamberlain.
The formality of a preface may seem scarcely necessary for the supplementing of a system as simple and comprehensible as the one herewith presented.
We have but to divide any surface we may wish to letter into squares (or parallelograms as the case may be), in pencil lines; form the required letters, in ink or paint, and according to the style chosen; erase the pencil lines, and the lettering is complete.
J. H. C.
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 proportional parts. Transportation of systems of logarithms. Common uses of common logarithms. Compound multiplication and the binomial theorem. Division, fractions and ratio. Rules for division. Rules for fractions. Continued proportion, the series and the summation of the series. Examples. Geometrical means. Limit of series. Equations. Appendix. Index. 104 pages, 12mo, cloth, 60c.
See also Algebraic Signs , Spons' Dictionary of Engineering No. 2. 40 cts.
See also Calculus , Supplement to Spons' Dictionary No. 5. 75 cts.
Barlow's Tables of squares, cubes, square roots, cube roots, reciprocals of all numbers up to 10,000. A thoroughly reliable work of 200 pages, 12mo, cloth, $2.50.
Logarithms. —Tables of logarithms of the natural numbers from 1 to 108,000 with constants. By Charles Babbage, M.A. 220 pages, 8vo, cloth, $3.00.
Logarithms. —A. B. C. Five figure logarithms for general use. By C. J. Woodward, B.Sc. 143 pages, complete thumb index 12mo, limp leather, $1.60.