VI. To charge as commission for the service of selling such book not more than four deniers to a member of the university and not more than six deniers to an outsider. This commission was to be paid by the purchaser, who seems to have been considered the obliged party in the transaction.[291] VII. To place conspicuously in the windows of their shops a price list of all works kept on sale. The _stationarii_ on their part were also held: I. To employ no scribes for the production of manuscripts other than those who had been accepted and certified before the Rector. II. To offer for sale or for hire no manuscripts that had not been passed upon and “taxed” by the appointed authority. III. To refuse to no applicant who was a member of the university the loan for hire of a manuscript, even though the applicant should require the same for the purpose of producing copies. It is evident that a regulation of this character would, in the case of an original work by a contemporary author, have operated as a denial of any author’s rights. Such original work constituted, however, at this time the very rare exception, and their authors were evidently obliged to content themselves with the prestige of securing circulation. The case of a manuscript representing outlay and skilled labour on the part of the dealer, who might have had to make a toilsome journey to secure it, and who had later paid for the service of one or more editors for its collation and revision, was, of course, of much more frequent occurrence. It is difficult to understand why this class of effort and enterprise should not have been encouraged by the university authorities instead of being so largely nullified by regulations which made of such a manuscript common property. This regulation is, however, identical with that of Bologna. The penalty there for refusing to place a manuscript at the service of a member of the university was five livres.[292] IV. To offer for rent no texts that were not complete and correct. V. In the event of a work being brought to Paris by a stranger, to give immediate information to the authorities in order that before such work could be copied for hire or for sale it should be passed upon by the authorities as orthodox and as suitable for the use of the members of the university, and as being complete and correct in its own text. Any _libraire_ who, having been duly sworn, should be convicted of violation of these regulations, forfeited his office, and all the rights and privileges thereto appertaining; and all members of the university, instructors or students, were strictly prohibited (under penalty of forfeiture of their own membership) from having further dealings with such a delinquent.[293]