Of the statues attributed to Phidias we may then strike out eleven as resting, on the face of the facts, upon no sufficient authority. We still shall have the large number of twenty-six important statues, many of them colossal, which are far more than sufficient to have occupied his life, even when reckoned at its longest probable term. To this number it would be impossible to add the marble statues contained in the Parthenon. Michel Angelo lived to a great age. He was throughout his life a very hard worker, devoting all his time to art. It is true that he was devoted to architecture and fresco-painting, as well as to sculpture, and that to these arts he gave much time; but still he was by profession specially a sculptor, and a large portion of his life was given to sculpture. He was, besides, impetuous and even violent in his marble work; and not content with the labor of the day, gave to it a portion of his nights, working with a candle fixed in his cap—unless, indeed, this also be a legend, into which it is better not to inquire too anxiously. Still, in the course of his long life he executed very few statues: of the really accredited statues of any size, the number, I think, does not exceed fifteen—and some of these are merely roughed out and left unfinished. The explanation of this is undoubtedly that casting in plaster having been then just invented, and being very imperfect in its development, he was accustomed at once to rough out his large statues from small sketches in terra cotta, after the probable practice of the ancients. This obliged him personally to do with his own hand much of the hard work which now, with the increased facilities of the art and the perfecting of plaster-casting, can safely be left to an ordinary workman; at all events, there are no full-sized models existing of his great works. If, then, Michel Angelo, with twenty years more of life, and with all his energy, could produce only some fifteen statues of heroic size,—and these, many of them, unfinished,—it will not seem necessary to suppose that Phidias must have executed double that number, particularly when we remember the colossal size of many of them (from forty to sixty feet in height), the extreme elaboration and fineness of the workmanship, and the difficulties growing out of the materials in which they were executed.