Barqu
A demon in whose keeping was the secret of the Philosophers' stone.
Barguest, the: A goblin or phantom of a mischievous character, so named from his habit of sitting on bars or gates. It is said that he can make himself visible in the day time. Rich in the Encyclopædia Metropolitana relates a story of a lady, whom he knew, who had been brought up in the country. She had been passing through the fields one morning, when a girl, and saw, as she thought, someone sitting on a stile: however, as she drew near, it vanished.
Barnaud, Nicholas : A medical doctor of the sixteenth century who claimed to have discovered the Philosophers' Stone. He published a great number of short treatises on the subject of Alchemy, which are contained in the third volume of the Theatrum Chimicum of Zetzner, pub-- lished at Strasburg, in 1659.