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BOOK I: PARALLEL TABLES OF LOGARITHMS AND SQUARES. By intervals of 64ths of an inch from 0" to 60". By intervals of 32nds of an inch from 0' to 50'. By intervals of 16ths of an inch from 50' to 100'. By intervals of 8ths of an inch from 100' to 300'. Tables of Angles and Trig. Functions for Bevels to 12" by 32nds. Multiplication Table for Rivet Spacing. Multiplication Table for Spacing of Lattice Bars . Explanations and Examples. BOOK II: PARALLEL TABLES OF SLOPES AND RISES. All Bevels to 12" by 16ths", 0" to 12", 0' to 40'. All Bevels to 12" by 16ths", 12" to 22", 40' to 80'. Special Tables 0" to 32" for the following Pitches: 3°45', 5°37'30", 7°30', 11°15', 15°, 1/5, 22°30', 1/4, 30°, 1/3. Tables of Logarithms and Squares o" to 44" by 64ths". Tables of Logarithms and Squares 0' to 10' by 32nds". Tables of Bevels-Angles and Trig. Functions for Bevels to 12" by 32nds". Multiplication Table for Rivet Spacing and Spacing of Lattice Bars. Decimal Equivalents. BOOK III: FIVE DECIMAL LOGARITHMIC AND TRIGONOMETRIC TABLES. Logarithms of Numbers from 1 to 10,000. Log. Trig. Functions. Natural Functions. Circumferences, Areas, Squares, Cubes, Square Roots, etc. Lengths of Arcs for Radius 1. Areas and Circumferences for Diameters in Units and Fractions. Constants. Formulas. Decimal Equivalents. Metric Equivalents.