PAUL, a learned Jesuit, born at Placentia in He entered early among the Jesuits; and after having taught mathematics and divinity at Rome, was sent into Sweden to Queen Christina, whom he prevailed on to embrace the popish religion. He wrote, 1. *Vacuum proscrip- tio*; 2. *Terra machinis mota*, Rome, 1688, 4to; 3. *Mechanicorum libri octo*; 4. *De Igne Dissertations*, Parma, 1686 and 1695, 2 vols. 4to; 5. *De Angelis Disputatio Theologica*; 6. *Hydrostatiae Dissertations*; 7. *Optica Dispu- tationes*. It is remarkable that he wrote this treatise on optics at the age of eighty-eight, and after he was blind. He also wrote several books in Italian.