In mathematics, Hagen, Algue. In naval tactics, "The Jesuit's Book." In archaeology, Garucci, Marchi, the master of De Rossi. In Oriental languages, Strassmaier, Harvas, Maas, Van den Gheyn. In theology, Suarez, Vasquez, Toletus, Maldonatus, Franzelin. In philosophy, Cominbricenses, Liberatore. In moral philosophy, Busenbaum, Gury, Toledo, Ballerini, Layman, Lehmkuhl, Genicot. In asceticism, Alvarez de Paz, Gaudier, Rodriguez, Scaramelli, Grou. The Spiritual Exercises comprise a whole library. Father Watragan has written a work merely to record the editions and commentaries on these Exercises. THE EDUCATIONAL PLAN OF ST. IGNATIUS St. Ignatius had gathered about him a body of picked men. The Roman College, the type of colleges of Jesuit education, would have for its professors only those who had been doctors of the University of Paris. The outline of the course of education was given by St. Ignatius. It was completed and developed by Aquaviva. The work was still more perfected by Father Laynez, of whom it is said,-- "St. Ignatius praised him not only on account of other great merits, but particularly for devising and arranging the system of colleges." As to the number of students found under a unified method of thorough teaching, it will be interesting to take them in review. In Rome in 1584, the twenty colleges attending classes in the Roman College numbered 2108 students, in Poland there were 10,000 young men chiefly of the nobility, at Rome 2000, at La Fleche 1700. In the seventeenth century at the College of Louis le Grand, in Paris, the number varied between 2000 and 3000. In 1627 the Province of Paris had in fourteen colleges 13,195 students. The papal seminaries under Gregory XIII, at Vienna, Dillengen, Fulda, Prague, Graetz, Olmuetz, Wilna, as well as in Japan, were directed by the Fathers, as also that of Pius V and of St. Charles Borromeo at Milan. Taking an average, there were more than two hundred thousand students being educated in these educational institutions. A comparison could be made on this basis of the work done by the Order and that which is accomplished by Oxford. If Oxford spends annually a revenue of $2,500,000 to supply facilities for higher education to two thousand of the nobility and gentry, how much would be required to educate a quarter of a million students,--not two thousand, but two hundred and fifty thousand? The fundamental principles in the educational institute of St. Ignatius were these:-- First, solidity and thoroughness. The first condition of all higher studies as well as of lower studies was such that, as St. Ignatius said, "It was useless to begin at the top, as the edifice without a good foundation would never stand." Let literature and philosophy be gone through with satisfactorily, and then theology may be approached.