This system of prelection, which in addition to the perfection of its _technique_, required erudition from every branch of learning,[304] made of the Professor anything but a technical pedagogue. Voltaire noticed it, speaking of his own Professor. "Nothing will efface from my heart," he wrote to Père de la Tour, Rector of the Collège Louis-le-Grand, "the memory of Father Porée, who is equally dear to all that studied under him. Never did man make study and virtue more amiable. The hours of his lessons were delicious hours to us. And I should have wished that it was the custom at Paris, as it used to be at Athens, that one, at any age, could listen to such lectures. I should often go to hear them. I have had the good fortune to be formed by more than one Jesuit of the character of Père Porée, and I know that he has successors worthy of him."[305] The productions of such Professors replenished the literature of the classics, as we may see in the great editions, or _bibliothecæ classicæ_, published during the present century. Father De la Cerda of Toledo, in his three folio volumes on Virgil, in 1617, gave to literature an encyclopædia of political and moral observations, including geography, history, and the natural sciences.[306] His technical work was not inferior; for his "Grammatical Institutions" became in 1613, by an exclusive privilege, the standard of all the public schools in Spain. Father Nicholas Abram, whose "Epitome of Greek Precepts in Latin Verse" went through fifty editions in twenty-two years, published in 1632, while Professor at the College of Pont-à-Mousson, two volumes octavo on Virgil, which were then republished constantly at Rouen, Paris, Toulouse, Poitiers, Lyons, etc.[307] Undertaking the same labor, in behalf of Cicero, he issued two volumes folio, "by which John George Grævius profited in his edition of Cicero, Amsterdam, 1699; as well as the editor of Cambridge, whose work appeared in 1699, 1710, and 1717."[308] Father De la Rue's (Carolus Ruæus) Delphin Virgil is a familiar work in France, Holland, England; so, too, De Merouville's Delphin edition of Cicero, which was often reproduced at Cambridge, London, Dublin, etc. The same we see with regard to Sanadon on Horace, Brumoy's great work on the Greek Drama, René Rapin's various critical and poetical works; and so of the rest. Of Père Rapin's thirty-five works, there are few which were not translated into various European languages; and Oxford, London, Cambridge, have been among the most active centres of republication, or translation into English.[309]