Note 6 — PART III.—Continued. LETTERS WRITTEN AFTER HIS RETURN TO THE U. S. DOWN TO THE TIME OF HIS DEATH. 1790-1826. (continued 6)

The real cash or money necessary to carry on the circulation and barter of a State, is nearly one-third part of all the annual rents of the proprietors of the said State; that is, one-ninth of the whole produce of the land. Sir William Petty supposes one-tenth part of the value of the whole produce sufficient. Postlethwait, voce, Cash.