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 36
int is a fine needleheld in a pair of forceps (fig. 53). It is used to markthe intersection of lines, or to set off divisions fromihe ])h)tting scale and protractor. This point mayalso ho used to prick through a drawing upon an R Fit;. 52. Ik. M. DRAWING INSTRUMENTS. 15 intended copy, or, the… … Fig. 54. the drawing-board so that the ink will follow the pen, which prevents blotsor the accnmnlation of too ninch ink at any one point. The dotting point (fig. 55) resembles a drawing pen, except that the23oints are not so sharp. On the back blade, as seen in the engraving, is apivot, on which…
