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 635
within it the whole of the model intended to berepresented, and as hereafter will be farther illustrated, the position of anypoint on or within the cube, the direction of any line or the inclination ofany plane to which it may be cut, can be easily ascertained and repre-sented. In figs. 1 and 2 one… … The angle of the cube formedby the three radii meeting in thecentre of the hexagon, may bemade to appear either an internal orexternal angle; in the one case thefaces representing the interior, andin the otlicr the exterior of a cube.Figs. 3, 4, 5, illustrate tlie application of isometrical drawing…
