(g hard). Geber, the Arabian, was by far the greatest alchemist of the eleventh century, and wrote several treatises on “the art of making gold” in the usual mystical jargon, because the ecclesiastics would have put to death any one who had openly written on the subject. Friar Bacon, in 1282, furnishes a specimen of this gibberish. He is giving the prescription for making gunpowder, and says—
Sed tamen salis-petræ LURU MONE CAP URBE Et sulphuris.
The second line is merely an anagram of Carbonum pulvere (pulverised charcoal). “Gibberish,” compare jabber, and gabble.