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 64
f are equal, itwill be more accurate to set off a distance equal either to the whole aggre-gate, or such a number of them as can be contained by the compasses, andthen dividing the line into the required parts. Prob. III.—To divide a giveib line into two egual jparts (fig. 81). Open the dividers to… … Fig. SI. the other end of the line, we have the division required; but should the pointof the dividers fall within or without the end of the line, divide this deficitor excess by the eye into two equal parts, and contract or open the dividers 44 GEOMETRICAL PKOBLEMS. to this point, and apply them…
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