The agreement with Isaac Elzevir provided that he should hold at the disposition of members of the University Faculty one press and during certain seasons of the year two presses, the work of which was apparently devoted to the _précis_ or papers of instruction recognised for use in the class-room. The productions of more considerable compass of which the professors were the authors, were passed upon by the curators of the Press and by the senate of the University with reference to their publication through the University Press and at the charge of the University treasury. The printer was under obligations to secure for the Press the service of correctors competent to supervise the text of any language required. In the majority of cases there should, of course, have been no difficulty in securing such correctors from the membership of the University itself. Any illustrations to be included in the University publications were to be “supplied to the printer,” but it is not clear whether this provision implies that the authors of books, the remaining expense of which was provided by the University, must themselves meet the outlay for the production of the illustrations. One copy of every work printed by the Publisher to the University was to be deposited in the University library. The publishing undertakings were, in the matter of Press censorship or supervision, to be subject to the regulations of the States-General. What censorship was put in force appears, however, to have been exercised through certain selected members of the Theological Faculty of the University. I find no reference to any political questions arising in connection with these Leyden publications, and apparently there was, outside of the theologians, no keen interest in censorship or in Press supervision. The privilege of occupying for the printing-office a portion of the court or quadrangle of the University buildings, was doubtless estimated as a portion of the compensation and must have been of material service for the prestige of the concern, irrespective of the detail of the saving of rent.