our old customs, silver coin, or pieces of bullion that anciently passed for money. By Doomsday tenure, some rents to the king were paid in argentea albo, common silver pieces of money; other rents in libris uscis et penfatis, in metal of full weight and purity: in the next age, that rent which was paid in money, was called blanch fearn, and afterwards white-rent; and what was paid in provisions, was termed black mail.

Argentum musivum is a mass consisting of silver-like flakes, used for the colouring of plaster-figures, and for other purposes, as pigment. It consists of an amalgam of equal parts of tin, bismuth, and mercury. It is to be mixed with white of eggs, or spirit varnish, and then applied to the intended work, which is afterwards to be burnished.

Argentum vivum, Mercury, or Quicksilver. See Mercury; Chemistry, p. 153, 205, 250, 414; and the references at Materia Medica, p. 121.