IV. That no more than ten tickets be delivered out for each hour of admittance, which tickets, when brought by the respective persons therein named, are to be shewn to the porter; who is thereupon to direct them to a proper room appointed for their reception, till their hour of seeing the Museum be come, at which time they are to deliver their tickets to the proper officer of the first department: and that five of the persons producing such tickets be attended by the under Librarian, and the other five by the assistant in each department. V. That the said number of tickets be delivered for the admission of company at the hours of nine, ten, eleven, and twelve respectively in the morning; and for the hours of four and five in the afternoon of those days in which the Museum is to be open at that time: and that if application be made for a greater number of tickets, the persons last applying be desired to name some other day and hour, which will be most convenient to them. VI. That if the number of persons producing tickets for any particular hour does not exceed five, they be desired to join in one company; which may be attended either by the under Librarian, or assistant, as shall be agreed on between them. VII. That if any persons having obtained tickets, be prevented from making use of them, they be desired to send them back to the porter in time; that other persons wanting to see the Museum may not be excluded. VIII. That the spectators may view the whole Museum in a regular order, they are first to be conducted through apartment of manuscripts and medals; then the department of natural and artificial productions; and afterwards the department of printed books, by the particular officers assigned to each department. IX. That one hour only be allowed to the several companies, for gratifying their curiosity in viewing each apartment, and that each company keep together in that room, in which the officer, who attends them, shall then be. X. That in passing through the rooms, if any of the inspectors desire to see any book, or other part of the collection, not herein after excepted, it be handed to them by the officer, who is to restore it to its place, before they leave the room; that no more than one such book, or other part of the collection, be delivered at a time; and that the officer be ready to give the company any information they shall desire, relating to that part of the collection under his care. XI. That upon the expiration of each hour, notice be given of it; at which time the several companies shall remove out of the apartment, in which they then are, to make room for fresh companies.