The high price of the materials for writing, and the difficulty of procuring them, must also have been a great obstacle to the multiplication of books. When copies could only be procured by the slow and expensive process of transcription, it seems impossible to suppose that a large number could have been usually prepared of any ordinary work. Those of our readers who are aware that only about four hundred and fifty copies of the celebrated Princeps editions were struck off, will readily assent to the correctness of this opinion. The barbarous system of ancient warfare must have also caused the destruction of a great many works, raised the price of others, and rendered extremely difficult—not to say impossible—the accumulation of a very large number in any one place. The difficulties which the bibliomaniacs of our own times encounter in procuring copies of the editions of the fifteenth century, and the extravagant prices at which some of them have been sold, are enough to show how small a part of an entire edition has been able to pass safely through the short space of four centuries. How few copies, then, of a work written in the time of Alexander, could have reached the age of Augustus or of Trajan! With facts like these before us, how can we talk of libraries of 700,000 or 800,000 volumes in the ancient world? When we find it so difficult at the present day, in spite of the testimony of intelligent travellers, and of all the advantages we possess for making our estimates, to ascertain the truth with regard to the great libraries of modern Europe, how can we give credit to the contradictory and exaggerated statements which were promulgated in ages of the darkest ignorance concerning ancient Rome and Alexandria? "After an attentive examination of this subject," says that eminent bibliographer M. Balbi, "it seems to me improbable, if I should not rather say impossible, that any library of ancient Europe, or of the middle ages, could have contained more than 300,000 or 400,000 volumes."

But even allowing 700,000 volumes to the largest of the Alexandrian libraries—that, namely, of which a great part was accidentally destroyed during the wars of Julius Cæsar—allowing the same number to the library of Tripoli, and to that of Cairo; and admitting that the third library of Alexandria contained 600,000 volumes, and the Ulpian of Rome, and the Cordovan founded by Al-Hakem, an equal number—it will still be easy to show that the whole amount of one of these was not equal to even a fifth part of a library composed of printed books.

Every one who has had any thing to do with publication, is well aware of the great difference between the space occupied by the written and that filled by the printed letters. It is well known that the volumes of ancient libraries consisted of rolls, which generally were written only on one side. Thus the written surface of one of these volumes would correspond to but half the written surface of one of our books, of which every page is covered with letters. A library, then, composed of 100,000 rolls, would contain no more matter than one of our libraries composed of 50,000 manuscripts. It is well known, also, that a work was divided into as many rolls as the books which it contained. Thus the Natural History of Pliny, which in the Princeps edition of Venice forms but one folio volume, would, since it is divided into thirty-seven books, have formed thirty-seven rolls or volumes. If it were possible to compare elements of so different a nature, we should say that these rolls might be compared to the sheets of our newspapers, or to the numbers of our weekly serials. What would become of the great library of Paris were we to suppose its 824,000 volumes in folio, quarto, &c., to be but so many numbers of five or six sheets each? Yet this is the rule by which we ought to estimate the literary wealth of the great libraries of ancient times; and "hence," says M. Balbi, "notwithstanding the imposing array of authorities which can be brought against us, we must persist in believing that no library of antiquity, or of the middle ages, can be considered as equivalent to a modern one of 100,000 or 110,000 volumes."

No one of the libraries of the first class now in existence dates beyond the fifteenth century. The Vatican, the origin of which has been frequently carried back to the days of St. Hilarius in 465, cannot with any propriety be said to have deserved the name of library before the reign of Pope Martin V., by whose order it was removed in 1417 from Avignon to Rome. And even then a strict attention to exactitude would require us to withhold from it this title until the period of its final organization by Nicholas V. in 1447. It is difficult to speak with certainty concerning the libraries, whether public or private, supposed to have existed previous to the fifteenth century, both on account of the doubtful authority and indefiniteness of the passages in which they are mentioned, and the custom which so readily obtained in those dark ages of dignifying with the name of library every petty collection of insignificant codices. But many libraries of the fifteenth century being in existence, and others having been preserved long enough to make them the subject of historical inquiry before their dissolution, it becomes easier to fix with satisfactory accuracy the date of their foundation. We find, accordingly, that during the fifteenth century ten libraries were formed: the Vatican at Rome, the Laurentian at Florence, the Imperial of Vienna and Ratisbon, the University at Turin, the Malatestiana at Cesena, the Marciana at Venice, the Bodleian at Oxford, the University at Copenhagen, and the City at Frankfort on the Maine. The Palatine of Heidelberg was founded in 1390, dispersed in 1623, restored in 1652, and augmented in 1816.

The increase of the libraries of Europe has generally been slowly progressive, although there have been periods of sudden augmentation in nearly all of them. They began with a small number of manuscripts; sometimes with a few, and often without any printed works. To these gradual accessions were made from the different sources which have always been more or less at the command of sovereigns and nobles. In 1455 the Vatican contained 5000 manuscripts. In 1685, after an interval of more than two centuries, the number of its manuscripts had only risen to 16,000, and that of the printed volumes did not exceed 25,000. In 1789, but little more than a century later, the number of manuscripts had been doubled, and the printed volumes amounted to 40,000.

Far different was the progress of the Royal, or as it is now called, the National Library of Paris. The origin of this institution is placed in the year 1595—the date of its removal from Fontainebleau to Paris by order of Henry IV. In 1660 it contained only 1435 printed volumes. In the course of the following year this number was raised to 16,746, both printed volumes and manuscripts. During the ensuing eight years the library was nearly doubled; and before the close of the subsequent century, it was supposed to have been augmented by upwards of 100,000 volumes.

In most cases the chief sources of these augmentations have been individual legacies and the purchase of private collections. Private libraries, as our readers are doubtless well aware, began to be formed long before public ones were thought of. Like these, they have their origin in the taste, or caprice, or necessities of their founders, and are of more or less value, as one or the other of these motives has presided over their formation. But when formed by private students with a view to bring together all that has been written upon some single branch of science, or by amateurs skilled in the principles of bibliography, they become more satisfactory and complete than they could possibly be made under any other circumstances. Few of them, however, are preserved long after the death of the original collector; but falling into the hands of heirs possessed of different tastes and feelings, are either sold off by auction, or restored to the shelves of the bookseller. It was by availing themselves of such opportunities that the directors of the public libraries of Europe made their most important acquisitions. This is, in short, the history of the Imperial Library of Vienna; and it can hardly be necessary to add, that it was thus that the rarest and most valuable portions of that collection were brought together.[20] It was thus, also, that the Vatican acquired, some twenty years ago, by the purchase of the library of Count Cicognara, a body of materials illustrative of the history of the arts, which leaves comparatively little to be wished for by the most diligent historian. It can hardly be necessary to enlarge upon this subject. Every one who has engaged, even in a small degree, in historical researches, must have observed how soon he gets out of the track of common readers, and how dark and difficult his way becomes, unless he chance to meet with some guide among those who, confining their attention to a single branch of study, have become familiar with, and gathered around them almost every thing which can serve to throw light upon it. And when a public institution has gone on through a long course of years adding to the works derived from other sources these carefully chosen stores of the learned, it is easy to conceive how much it must contribute, not merely towards the gratification of literary curiosity, but to the actual progress of literature.

From these general considerations respecting modern libraries, we proceed to give some particulars which may serve to convey an idea of the history, character, and contents of the principal book-collections now in existence; and with this view, as well as for convenient reference, we shall arrange them under the respective heads of British Libraries, and Foreign Libraries.

BRITISH LIBRARIES.

1. British Museum Library, London.—There is probably no other public institution in Great Britain which is regarded with so great and general interest as the British Museum. By the variety of its departments, this splendid national depository of literature, and objects of natural history and antiquities, meets in some way the particular taste of almost every class of society. The department of Natural History, in its three divisions of Zoology, Botany, and Mineralogy, contains a collection of specimens unsurpassed, probably unequalled, in the world. The department of antiquities is in some particulars unrivalled for the number and value of the articles it contains. But the library is the crowning glory of the whole. If, in respect to the number of volumes it contains, it does not yet equal the National Library of Paris, the Royal Library of Munich, or the Imperial Library of St. Petersburg—in almost every other respect, such as the value and usefulness of the books, the arrangements for their convenient and safe keeping, and, in fact, in every matter pertaining to its internal arrangements, the library of the British Museum, by the concurrent testimony of competent witnesses from various countries, must take rank above all similar institutions in the world. Well may the people of this country regard the Museum with pride and pleasure. The liberal grants of parliament, and the munificent bequests of individuals, are sure indications of a strong desire and purpose to continue and extend its advantages.