But as a book-store, Marsh’s is not to be compared with the College Library. Formerly this splendid repository was open only four hours in the day for public use, from eight till ten in the morning, and from eleven till one; but a more liberal access to its treasures has been conceded of late; the entire is now free from nine in the morning till four in the afternoon, without interruption. This is a great acquisition to the privileged, and has been attended by a vast increase of readers and visitors; but there is still room for amendment in particulars of no small importance to general convenience. We are happy to say, however, that to some of these the attention of the enlightened heads of the University has been directed, and that great improvements in the economy of the institution may at no distant day be expected. In the first place, the books are exceedingly ill arranged, and there is no printed catalogue of them, so that the visitor finds great difficulty in laying his hand upon those he may be in quest of; in addition to which it may be stated, that there is no attendant librarian, or other official whose duty it is to give information, or procure the work which the visitor may require. They order this matter better in France; but whatever may be intended as to such functionaries, we have learned with much satisfaction that a new catalogue is now in course of preparation, and that it is to be a printed one. The preparing of so great a work for the press must necessarily occupy a good deal of time. It has been, we understand, now about two years in hands, and will be completed, it is expected, in about two more. There are six writing-clerks constantly employed in preparing slips for the printer, under competent direction. A greatly improved classification will be effected, and the printed volumes, when perfected, will be offered for sale. Incidental to the execution of this great work, there will be a new and improved arrangement of the books on the shelves to correspond with that in the catalogues; and when both these important matters are effected, it is obvious that the difficulties which are now experienced in the pursuit of knowledge within this venerable gallery, will be in a great degree removed.