A ready numberer [electronic resource] : or, the cotton spinner's calculator: a table, Calculated to afford greater assistance, than any hitherto published, to Cotton Manufacturers, particularly those in The Spinning Branch. Shewing the number of hanks required on a set, of a bundle, to make the yarn any such number, from 11 hanks in one pound, up to 210. Exhibited upon a simple construction, as shall be fully explained hercaster. There is, on every page, to render this work still more serviceable, a narrow column, that shews the amount of the weight inserted on the same, under (and a little above) eight shillings and six pence per 1b. To which also is annexed, a wrapping table; OR, A Table computing the length of a whole set, by the length of one cop. Including nine different sizes of Jennies, and nineteen Mules, from 144 spindles, taking all regular sizes (i. e. 12 to be the common difference) up to 360. By Thomas Jones, Evan Evans, and John Thornton, Cotton Spinners.