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The line of proportion, commonly called Gunter's line, made easie. A second part : With the addition of other lines, which may convenient y[sic] be put upon a two-foot rule/ By Wil. Leybourn philom. To which is added A supplement, containing the description and some uses, of a convenient two-foot joynt-rule. By John Brown.

The line of proportion, commonly called Gunter's line, made easie. A second part. With the addition of other lines, which may convenient y[sic] be put upon a two-foot rule ... By Wil. Leybourn philom. To which is added A supplement, containing the description and some uses, of a convenient two-foot joynt-rule ... By John Brown.