There are other rare and valuable MSS. in this Museum, the most remarkable of which are a Commentary in Latin on the epistle of St. Paul to the Romans, by Cardinal Grimani. It is adorned with exquisite miniature illustrations, painted by Don Giulio Clovio, called the Michael Angelo of miniature painters. "The figures are about an inch in height," says Mrs. Jameson, "equaling in vigor, grandeur, and originality, the conceptions of Michael Angelo and of Raffaelle, who were his cotemporaries and admirers." Also, a missal of the fifteenth century, containing ninety-two miniatures by Lucas van Leyden and his scholars, executed in a truly Dutch style, just the reverse of those of Clovio, except in point of elaborate finishing. GEORGE MORLAND. The life of this extraordinary genius is full of interest, and his melancholy fall full of warning and instruction. He was the son of an indifferent painter, whose principal business was in cleaning and repairing, and dealing in ancient pictures. Morland showed an extraordinary talent for painting almost in his infancy, and before he was sixteen years old, his name was known far and wide by engravings from his pictures. His father, who seems to have been a man of a low and sordid disposition, had his son indented to him as an apprentice, for seven years, in order to secure his services as long as possible, and he constantly employed him in painting pictures and making drawings for sale; and these were frequently of a broad character, as such commanded the best prices, and found the most ready sale. Hence he acquired a wonderful facility of pencil, but wholly neglected academic study. His associates were the lowest of the low. On the expiration of his indenture, he left his father's house, and the remainder of his life is the history of genius degraded by intemperance and immorality, which alternately excites our admiration at his great talents, our regrets at the profligacy of his conduct, and our pity for his misfortunes. According to his biographer, Mr. George Dawe, who wrote an impartial and excellent life of Morland, he reached the full maturity of his powers, about 1790 when he was twenty-six years old; and from that time, they began and continued to decline till his death in 1804. Poor Morland was constantly surrounded by a set of harpies, who contrived to get him in their debt, and then compelled him to paint a picture for a guinea, which they readily sold for thirty or forty, and which now bring almost any sum asked for them. Many of his best works were painted in sponging houses to clear him from arrest. MORLAND'S EARLY TALENT.