"Now I ask," says he, "how much even Professor Gauss, _le plus grand des mathematiciens_, as _La Grange_ called him, has realized from his lectures? Mathematics, at least the higher branches of them, never can be very popular; I mean, it is impossible that they should be generally studied, and it would be to consign a professor to absolute indigence, if government should leave professors of mathematics dependent on the honorarium paid by their students. I studied mathematics under the celebrated Pfaff at Halle, whom _La Grange_ called _un des premiers mathematiciens_, and we were never more than twenty in his lecture room, of whom I fully believe not much more than half paid the _honorarium_, which was very small." P. 58. And again,-- "Yet I believe, that generally speaking, it is better for professors and students to have fees paid for their lectures, for various reasons, although it would be unsafe to let professors be solely or chiefly depending upon them, for it would be unsafe to settle such annuities upon persons intended to live for science, or guarantee them, forever, an easy life. It has besides been found, that generally, students attend those lectures more carefully for which they pay. With the different branches of instruction, the principle upon which professorships are to be established, ought to vary. In a city, in which many students of medicine always will be assembled, it may be safe to let the professor greatly depend upon the fees of the students, whilst a professor of Hebrew ought to be provided for in such a way, that he may follow the difficult study of Oriental languages, without the direct care for his support, in case the number of students would be too small for this purpose, as it generally will prove." P. 65. In most of our colleges, the president has some control over the course of education in the schools of the institution; and, consequently, over the professors. Such a plan is, however, impolitic. No control whatever ought to be exerted over the teacher. If qualified--and if not he is not fitted for his situation--he ought to be left to himself, and to follow that system which he conceives best adapted to develop the intellect of his pupils; at the same time he should be held rigidly responsible for his free agency. In the University of Virginia, as well as in other of the higher schools of the country, the professor is required to send in a weekly report of the number of lectures he has delivered; the daily examinations instituted; the length of time occupied in each; and this report of the mode in which his duties have been executed, is laid before the board of visitors at their next meeting. In this manner delinquencies can be detected, and the appropriate corrective be applied.