Greek and Latin MSS. are the main subject. Oriental books we do not even touch upon, and vernacular books in English or French have to take a secondary place; and we may treat first of the Greek, for it is by far the most compact division. In the case of both Greek and Latin books we shall ask where and when they were chiefly made, when and how they left their early homes, and where they are to be found now. We shall rule out the whole of what may be called the classical period--the libraries of Alexandria and Pergamon, the bookshops of Martial's time--yes, and even the fourth-century library of Cæsarea--for of these we have no relics. Our concern is with what exists to-day, or what did exist until the nation, which has contributed so largely to learning and history in the past, turned apostate, and to its lasting shame destroyed and dispersed what more ignorant men had spared. The mischief Germany has done--and it will be long before we learn the full extent of it--she has done with open eyes. We think primarily of Belgium and North-Eastern France as the scenes of her worst devastations, but she has not confined her work of spoliation to them. The Balkan provinces and Russia held great masses of Greek and Slavonic MSS. as yet very incompletely known. The actual invasions of German troops, and the wars and revolutions which Germany has fostered in those regions, can hardly have been less mischievous than her operations in the West. GREEK MSS.: PRODUCTION AND DISPERSION The area in which Greek MSS. were produced in the medieval period was (with negligible exceptions) confined to Greece proper, "Turkey in Europe," the Levant, and South Italy. In the monastic centres, particularly Mount Athos, there were and are large stores of Greek books, the vast majority of which are theological or liturgical; and the theological authors most in vogue are those of the fourth and later centuries. Copies of primitive Christian authors or classical ones are comparative rarities. True, one or two of surpassing interest have been found in such libraries; a famous Plato was brought by Dr. E. D. Clarke from Patmos, and is at Oxford now; the treatise of Hippolytus against heresies came in the forties from a monastery to the Paris library. But these are exceptions. We have to look at Constantinople as by far the most important centre of learning and of book-production. The city was full of libraries, public and private, and of readers. The culture of the place was, no doubt, self-contained; it did not aim at enriching the outer world, which it despised; its literary productions were imitative, the work of _dilettanti_ and decadents. Nevertheless, it preserved for us wellnigh all that we now have of the best literature of Greece, and, but for a few catastrophes, it would have handed on much more. Of thirty-two historical writings read and excerpted by Photius in his _Bibliotheca_, late in the ninth century, nineteen are lost; of several