natural Institution. Of this there are many kinds of which the

most refined is that of Exchange, which is mix'd with an usury of

Thus did Money grow inseperably necessary to all Exchange, to

make the things exchanged equal in value, for that all exchange

is either by the actual or intellectual valuation of Money; that

is to say, Either the thing is exchanged for Money, or if it be

exchanged for another thing, the measure of that exchange is how

much Money either of the things exchanged is conceived to be