Note 850 — BOOK XXXIII. THE NATURAL HISTORY OF METALS.647

Chlorine, however, and nitro-muriatic acid corrode and dissolve gold, forming a chloride of gold, which is soluble in water. Ajasson remarks, that gold becomes volatilized by the heat of a burning-glass of three or four feet in diameter; and that when it acts as the conductor of a strong current of electricity, it becomes reduced to dust instantaneously, presenting a bright greenish light.