The compting-House assistant [electronic resource] : or, book-keeping made easy: being a complete treatise on merchants accompts, after the most approved method. Wherein Almost all the Varieties which can happen in that useful Art are introduced, and explained in a concise and easy Manner. The Whole being divided into two Sets of Books, principally intended to supply the Defects of those already published, and for the Perusal of Youth during their Instruction at School, and in the Compting-House. With a supplement, Shewing The Nature of negotiating Bills of Exchange, Promissory Notes, &c. and a Collection of the different Bills and Forms of Business in Use among Merchants. The second edition, corrected, with alterations and amendments. Methodized in the nature of real business By John Cooke, Master of the Academy the lower End of Charles-Street, St. James's Square.