The teachers are divided into ordinary professors; such teachers as occupy the established professorships, with the emoluments and duties thereunto belonging; and the extraordinary professors, such teachers as possess only such salary as the prince bestows. These do not always hold an actual professorship--and in this respect, resemble a third class, the so-called _Privat Docenten_; that is to say, gentlemen who devote themselves to an academical career, who have taken the degree of doctor, and through a public disputation have acquired the right to deliver lectures on subjects connected with their particular department of science. The last receive no salary, but depend upon the remuneration derived from their classes. This institution of private teachers forms a nursery, out of which the High School can advantageously recruit itself with able professors; and we shall have occasion presently to show the great benefit derived from this regulation, especially when compared with the arrangements of the French universities. All the ordinary professors are members of the faculty by virtue of their office. Their rank in the faculty determines itself by the number of years during which they have occupied regular professorships, whether in that in which they reside, or in some other university of Germany. The oldest member of each faculty becomes, according to established rule, its head, with the title of Dean. To him it belongs to bring forward all affairs of the faculty; to superintend the examination of the students, as well as to issue the diplomas conferred on them. The same honorarium which the docenten or tutors receive, receive also all the teachers of a university, from those students who attend their classes. There are regular receivers, quæstors, appointed for the reception of the honorarium, or charge for the attendance of lectures, to whom especially belongs the reception of all money belonging to the administration of the university, and attention to every thing connected with the financial department.