Bayle's Praise of the Genius of Pascal's Works 183 His Family 184 1623. Birth of Blaise Pascal 184 1631. Ætat. 9. His Father superintends his Studies 184 Philosophy of Descartes 185 1635. Ætat. 12. Pascal's Study of Physics 186 Being restricted to the Study of Greek and Latin, he occupies his leisure Moments with the Study of Geometry 186 His Father surprising him in his eager Pursuit of Mathematics, is overjoyed, and consults a Friend 187 Blaise Pascal comprehends Euclid without a Master's Instructions 188 Ætat. 16. His "Essay on Conic Sections" 188 His Father Etienne, being compromised in some Political Affairs, flies from Paris to Auvergne 189 Jaqueline Pascal's Performance at fourteen Years of Age in the Theatre of Cardinal de Richelieu; recites Verses declaratory of her Father's Innocence 189 1639. Ætat. 16. Richelieu pardons M. Pascal, and Blaise is presented to him as a young Mathematician 189 1641. Pascal studies Logic and Physics 190 1642. Ætat. 19. He invents an Arithmetical Computing Machine 190 Galileo's Investigations of the Atmosphere 191 Torricelli pursues this Inquiry 192 Father Mersenne explains this matter to Blaise Pascal 192 1647. Ætat. 24. Account of Pascal's Discovery of the Atmospheric Pressure, and his Experiments made on the Puy de Dôme 193 Descartes claims a Priority in this Invention 194 1653. Ætat. 30. Pascal's Treatises "On the Weight of the Atmosphere," and "On the Equilibrium of Liquids" 194 He quits the Study of Mathematics to devote himself to Religion 195 His Sister Jaqueline imitates his Devotion 195 He falls into a State of general Debility 195 1651. Death of Etienne Pascal 196 Jaqueline takes the Veil in the Abbey of Port Royal aux Champs 196 1654. Ætat. 37. Pascal meets with an alarming Accident, which injures his already feeble Health 196 Is delirious, and makes a Record of some supposed Vision 197 He renounces the World, and lives solitarily, using monastic