Universal mercantile tables, containing upwards of five thousand calculations in decimals the integer and vulgar fraction being given : With their application to exchange, interest, brokerage, casting up of integers, mensuration of superficies and solids, &c. Including all the probable variations that can happen. To which is added, a treatise on book-keeping, with a new mode of keeping the waste-book, journal, and cash account in one book, by which an account of the stock sold (tho' in small quantities) can be kept with the same trouble that you would debit the buyer. Containing also, the securest method of making insurance, &c. By Robert Dickinson, accountant.