The only cheerful room in this granite wilderness is the library, still in good and careful keeping. A long, beautiful room, two hundred feet of bookcases, and tasteful frescos by Tibaldi and Carducho, representing the march of the liberal sciences. Most of the older folios are bound in vellum, with their gilded edges, on which the title is stamped, turned to the front. A precious collection of old books and older manuscripts, useless to the world as the hoard of a miser. Along the wall are hung the portraits of the Escorial kings and builders. The hall is furnished with marble and porphyry tables, and elaborate glass cases display some of the curiosities of the library,--a copy of the Gospels that belonged to the Emperor Conrad, the Suabian Kurz; a richly illuminated Apocalypse; a gorgeous missal of Charles V.; a Greek Bible, which once belonged to Mrs. Phoebus's ancestor Cantacuzene; Persian and Chinese sacred books; and a Koran, which is said to be the one captured by Don Juan at Lepanto. Mr. Ford says it is spurious; Mr. Madoz says it is genuine. The ladies with whom I had the happiness to visit the library inclined to the latter opinion for two very good reasons,--the book is a very pretty one, and Mr. Madoz's head is much balder than Mr. Ford's. Wandering aimlessly through the frescoed cloisters and looking in at all the open doors, over each of which a cunning little gridiron is inlaid in the woodwork, we heard the startling and unexpected sound of boyish voices and laughter. We approached the scene of such agreeable tumult, and found the theatre of the monastery full of young students rehearsing a play for the coming holidays. A clever-looking priest was directing the drama, and one juvenile Thespis was denouncing tyrants and dying for his country in hexameters of a shrill treble. His friends were applauding more than was necessary or kind, and flourishing their wooden swords with much ferocity of action. All that is left of the once extensive establishment of the monastery is a boys' school, where some two hundred youths are trained in the humanities, and a college where an almost equal number are educated for the priesthood.