Sir William Hamilton explains the position of the regents with a lucid precision which makes his statement correspond precisely with the documentary stores before us. “In the original constitution of Oxford,” he says, “as in that of all the older universities of the Parisian model, the business of instruction was not confided to a special body of privileged professors. The University was governed, the University was taught, by the graduates at large. Professor, master, doctor, were originally synonymous. Every graduate had an equal right of teaching publicly in the University the subjects competent to his faculty and to the rank of his degree; nay, every graduate incurred the obligation of teaching publicly, for a certain period, the subjects of his faculty—for such was the condition involved in the grant of the degree itself. The bachelor, or imperfect graduate, partly as an exercise towards the higher honour, and useful to himself, partly as a performance due for the degree obtained, and of advantage to others, was bound to read under a master or doctor in his faculty a course of lectures; and the master, doctor, or perfect graduate, was in like manner, after his promotion, obliged immediately to commence (_incipere_), and to continue for a certain period publicly to teach (_regere_), some at least of the subjects appertaining to his faculty. As, however, it was only necessary for the University to enforce this obligation of public teaching, compulsory on all graduates during the term of their _necessary regency_, if there did not come forward a competent number of _voluntary regents_ to execute this function; and as the schools belonging to the several faculties, and in which alone all public or ordinary instruction could be delivered, were frequently inadequate to accommodate the multitude of the inceptors, it came to pass that in these universities the original period of necessary regency was once and again abbreviated, and even a dispensation from actual teaching during its continuance commonly allowed. At the same time, as the University only accomplished the end of its existence through its regents, they alone were allowed to enjoy full privileges in its legislature and government; they alone partook of its _beneficia_ and _sportulæ_. In Paris the non-regent graduates were only assembled on rare and extraordinary occasions: in Oxford the regents constituted the house of congregation, which, among other exclusive prerogatives, was anciently the initiatory assembly through which it behoved that every measure should pass before it could be admitted to the house of convocation, composed indifferently of all regents and non-regents resident in the University.”—_Dissertations_, p. 391–2.