Paracelse : Paracelsus, born in Switzerland in 1493, died

in 1541. Whilst travelling over the greater part of Europe, he discovered mysterious remédies which enabled hini to p)erform the niost e.xtraordinary cures, and was in conséquence offered the chair of medicine at Basel, but he did not keep it very long, and henceforth wandered froni town to town as an itinérant doctor. Though given to charlatanism, he made sonie useful discoveries, and his works contain not a few valuable notions in chemistry and therapeutics.

Avicenne : Avicenna, an Arabian physician and philosopher, was born in 980 and died in 1037. He wrote a great niany treatises on medicine, geometry, astronomy, logic, and nietaphysics. His Canon Medicinae was for centuries in use as a text-book in Europe as well as in Asia.

Averroès : born at Cordova between 11 20 and 1130, Averroes, the most celebrated .'Vrabian philosopher, died at Marocco towards the beginning of the thirteenth century. He wrote original works on medicine, philosophy, and theology, but is chiefly known by his commentaries upon Aristotle, which caused him to be called The Interpréter.