He that payeth in one place, and receiveth in ano∣ther; and he that receiveth in the one place, and payeth in the other; and so no man can remit, ex∣cept there be another to draw; nor can any receive, except there be another authorized to pay.
The first of these ways was taught to Mankind by necessity; the Second was sound out to facilitate the First, and the Third to facilitate the Second. Thus was the Original of Exchanges, to accommodate Com∣merce, which was first practised without benefit or loss, or any other consideration, they using to pay the value of the very Sum received: but in time it came to be considered, that the Party paying, loses time, and runs a hazard, and therefore it was held reasonable that he should have some benefit. Hence Exchanges are converted to an Art or Mystery, Mo∣neys being remitted for benefit, without so much respect to the end of its Original Institution.
In the first sort, the Merchant ought to know the Commodities delivered and received, the present va∣lue of both the Quality; Viz. whether lasting or perishable; the Property, viz. whether of Natural growth, or Artificial: And lastly, the Quantity; Viz. whether plentiful or scarce, and in few Lands.
In the second sort, the same things are necessary, and also a knowledge how the Things are Bought and Sold, whether by Weight, as ponderous Goods; by Concave or long Measures, as Commodities of Length; or such as are Solid or Liquid. A knowledge of Weights and Measures of the fineness, goodness, and currant value of Money, &c. A Merchant is to know what to bargain for, how to bargain, when to bargain, and with whom; which comprehends the knowledge of the Commodity, Weights, and Measures, proper Sea∣sons, and Credit of the Party bargained with.
In the third sort, there is necessary a knowledge of