There is no doubt also that there is a great similarity between the two, in the attitude and inclination of the body, the position of the feet, the style of dress, and even the lines of the folds. But portrait-statues of bronze may belong to any age; because, while the sculptor in marble is obliged to produce a work of his own hands and conception, and the date of a marble statue can therefore be determined by comparison with other well-known works, the caster in bronze can easily reproduce specimens of earlier and better times by taking a mould from a good original, altering the features slightly, and then casting it in excellent bronze. This seems to be the case with this celebrated image. I know that the current opinion makes it contemporary with the erection of Constantine's basilica; but to this I cannot subscribe on account of the comparatively modern shape of the keys. One of two things must be true,--either that these keys are a comparatively recent addition, in which case the statue may be a work of the fourth century, or they were cast together with the figure. If the latter be the fact the statue is of a comparatively recent age. Doubts on the subject might be dispelled by a careful examination of these crucial details, which I have not been able to undertake to my satisfaction. [Illustration: Bronze Statue of S. Peter.] The destruction of old S. Peter's is one of the saddest events in the history of the ruin of Rome. It was done at two periods and in two sections, a cross wall being raised in the mean time in the middle of the church to allow divine service to proceed without interruption, while the destruction and the rebuilding of each half was accomplished in successive stages. [Illustration: Statue of S. Hippolytus.] The work began April 18, 1506, under Julius II. It took exactly one century to finish the western section, from the partition wall to the apse. The demolition of the eastern section began February 21, 1606. Nine years later, on Palm Sunday, April 12, 1615, the jubilant multitudes witnessed the disappearance of the partition wall, and beheld for the first time the new temple in all its glory.