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 27
Fis. 25. Fig. 26. Fig. 27. A sphere or glohe (fig. 27), is a solid bounded by a uniformly curvedsurface, every point of which is equally distant from the centre, a pointwithin the sphere. A line passing through the centre, and terminatingboth ways at the surface, is a diameter.