GUNTER'S Line, a logarithmic line, usually graduated upon scales, sectors, &c.
It is also called the line of lines and line of numbers; being only the logarithms graduated upon a ruler, which therefore serves to solve problems instrumentally in the same manner as logarithms do arithmetically. It is usually divided into 100 parts, every tenth whereof is numbered, beginning with 1 and ending with 10: so that if the first great division, marked 1, stand for one-tenth of any integer, the next division, marked 2, will stand for two-tenths, 3, three-tenths, and so on; and the intermediate divisions will in like manner represent 100th-parts of the same integer. If each of the great divisions represent 10 integers, then will the lesser divisions stand for integers; and if the greater divisions be supposed each 100, the subdivisions will be each 10.