We have now reached the proper place for speaking of the great necessity of a Catholic University in the United States. A well-conducted college for undergraduates is not a university, though it is often dignified with that name; but is merely one of the principal constituent parts of a university. In regard to the proper constitution, nature, and conduct of a university, much has been written, of late, both in Europe and America. In Europe, those who write on the subject either consider the subject of improvement or reform in universities already existing, or the demands existing in various quarters for the foundation of new ones. These last are chiefly among Catholics, who are extremely alive to this necessity in several countries, but especially in Germany and England. The foundation of a great Catholic University for Germany at the spot which is most appropriate for such a grand undertaking, on account of its hallowed and scholastic memories, Fulda, has been determined. We hope that the efforts to make the Catholic University of Dublin completely successful, and to found another in England, may speedily produce their desired result. In this country, the heads of the older Protestant colleges are considering what measures can be taken to raise these institutions to the level of the universities of Europe. Among the papers which we have read from different quarters on this subject, those of Professor Seeley, of Cambridge, and of one or two professors of Yale College, writing in the _New Englander_, have especially attracted our attention; and we may have occasion to reproduce some of their remarks or suggestions in the present article. Among the Catholics of the United States, the Germans have manifested what looks like the most serious disposition which has yet shown itself for taking the actual initiative in the movement. We rejoice to see it, and hope they may go on. They are a most respectable body; their energy, wealth, and power of organized action are great. Germany is full of young ecclesiastics of the best education, who are sighing for employment, and competent to fill chairs in all the departments except that of English literature. We have but one precaution to suggest, in case this enterprise is undertaken, which is: that proper care be taken to secure the entire subordination of the corps of governors and teachers to the hierarchy and the Holy See, and to ascertain the strict orthodoxy of the persons called to fill the professorial chairs. We want no followers of Hermes, Döllinger, or any other leader of a German sect in philosophy or theology; and persons of that class whose _rôle_ is played out at home, might be the very first to look out for a new field in which to practise their manœuvres, in a German University in the United States, if they saw a chance of securing in it the desirable position of professors--a position which has special attractions for the German mind.