Averroeana : being a transcript of several letters from Averroes an Arabian philosopher at Corduba in Spain, to Metrodorus a young Grecian nobleman, student at Athens in the years 1149 and 1150 : also several letters from Pythagoras to the King of India, together with his reception at the Indian court, and an account of his discourse with the King, and his gymnosophists, and his rules and precepts : his account of the power and efficacy of numbers, and magical uses thereof : to which is prefixt, a Latin letter by Monsieur Grinau, one of the Messieurs du Port Royal in France, to the ingenius Monsieur Gramont, merchant at Amsterdam, concerning the subject of these papers, and how they came to his hands : the whole containing matters highly philosophical, physiological, Pythagorical and medicinal, the work having been long conceal'd is now put into English for the benefit of mankind, and the rectification of learned mistakes.