The scales of commerce and trade: ballancing betwixt the buyer and seller, artificer and manufacture, debitor and creditor, the most general questions, artificiall rules, and usefull conclusions incident to traffique: comprehended in two books. The first states the ponderates to equity and custome, all usuall rules, legall bargains and contracts, in wholesale ot [sic] retaile, with factorage, returnes, and exchanges of forraign coyn, of interest-money, both simple and compounded, with solutions from naturall and artificiall arithmetick. The second book treats of geometricall problems and arithmeticall solutions, in dimensions of lines, superficies and bodies, both solid and concave, viz. land, wainscot, hangings, board, timber, stone, gaging of casks, military propositions, merchants accounts by debitor and creditor; architectonice, or the art of building. / By Thomas Willsford Gent.

The construction of Decimal Tables for Use money, made proportional for any interest, time, or terme of years required, with the applications of these il∣lustrated with usefull and compendious examples.

All questions of compound interest money may be comprehended and solved by one of the 5 pre∣cedent Tables, calculated (without sensible errour) and extracted from the former prescribed rules, as in the 38 and following Propositions of simple in∣terest: And first, here observe that these Tables are composed upon the worth or interest of 1 L princi∣pal per ann. after the rate of 6 L per cent. yearly payments, as the Law now commands, with a pro∣hibition of any greater interest, upon the penalty of a forfeiture, excepting such cases wherein there depends some apparent hazard, as in Exchanges, Cambio Maritimo, or in Bonds and Obligations not satisfied, that antedate the Act, &c. and upon this foundation are erected these tables, whose cal∣culations I will first exhibit to your view, both for farther satisfaction, & the composing of any others upon other rates or proportions; and then proceed unto the use and explication of these.