Note 855 — BOOK XXXIII. THE NATURAL HISTORY OF METALS.647

This is far surpassed at the present day, its malleability being such that it may be beaten into leaves not more than one two hundred and eighty thousandth of an inch in thickness, and its ductility admitting of one grain being drawn out into five hundred feet of wire. For further particulars as to the gold leaf of the ancients, and the art of gilding, as practised by them, see Beckmann’s Hist. Inv. Vol. II. p. 391, et seq. Bohn’s Edition.