Greek bishop of Ptolemais in ancient Libya(373 – 414 CE). He is known for the first reference to the hydrometer, and by a work on alchemy in the form of a commentary.
By Stpiev – Own work, CC BY-SA 4.0,
Greek bishop of Ptolemais in ancient Libya(373 – 414 CE). He is known for the first reference to the hydrometer, and by a work on alchemy in the form of a commentary.
By Stpiev – Own work, CC BY-SA 4.0,