Appleton's cyclopædia of drawing, designed as a textbook for the mechanic, architect, engineer, and surveyor (1866)
Worthen, William Ezra, 1819-1897, [from old catalog] ed, Appleton, firm, publishers, New York. (1866. D. Appleton & co.) [from old catalog] · New York, D. Appleton and company · leaf 45
10. Take the lateral distance of the second term 6, from any convenientscale of equal parts, and open the sector until that quantity, or any aliquotpart thereof, becomes the transverse distance of the first term 2, then thetransverse distance of the third term 10, taken from the same scale of… … 24 DRAWING INSTEUMENTS. scribed on tlie plane scale ; for on the sector, tlie radius witli wliicli the arcis to be described may be of any length less than the transverse distanceof 60 and 60 when the legs are opened as far as the instrument will admitof. But with the chords on the plane scale, the…
