a whitish salt, continually cast up from the metal, as it is called, whereof glas is made; and, swimming on its surface, is skimmed off.

Sandiver is also plentifully thrown out in the eruptions of volcanos; some is of a fine white, and others tinged bluish or yellowish.

Sandiver is detergent, and good for foulnesses of the skin. It is also used by gilders of iron.