or FOLIS, anciently signified a little bag or purse; whence it came to be used for a sum of money, and very different sums were called by that name: thus the scholiast on the Basiliæ mentions a follis of copper which was worth but the 24th part of the milliarense; the glossæ nomices, quoted by Gronovius and others, one of 125 milliarense, and another of 250 denarii, which was the ancient sesterium; and three different sums of eight, four, and two pounds of gold, were each

according to Mr Locke, consists in the drawing of false conclusions from just principles; by which it is distinguished from madness, which draws just conclusions from false principles.

But this seems too confined a definition; folly, in its most general acceptation, denoting a weakness of intellect or apprehension, or some partial absurdity in sentiment or conduct.