Stephens discovered the stone quarries of Copan, a range of hills some two miles north from the river, running east to west. Out of the side of the hill the pre-Columbian masons had cut the materials for the many stelae, pyramids, and steps which lay in the plain below. Stephens found many blocks which had been quarried and then rejected for some defects; and in one ravine leading towards the river was a huge monolith, larger than any used in the ruins, which had been left thus half-way on its journey to the city. How such huge masses of stone were carried over even two miles of woodland must always remain one of the greatest of the many puzzles which the erection of the cyclopean Mayan buildings presents to baffled archæology. To the south of the enclosure described, Stephens found within terraced walls a group of stelae and altars. He thinks that these walls and their statues formed an annexe of the large enclosure which he is probably right in calling the main temple. The stelae were quite close together and are of such interest both artistically and archæeologically that we cannot resist the temptation of reproducing some of them from Stephens's excellent plates. The monoliths averaged 12 feet in height, and are such masses of ingenious ornamentation as would arrest attention even if found as relics of a race the civilisation of which was perfectly understood. But here we have a series of the most intricate alto-reliefs undertaken with such success that they can be accurately copied after many centuries. Stephens found at the Copan quarries blocks of half-prepared stone with hard flints embedded in them. These blocks had been rejected by the workmen for the very excellent reason that their only tools were flint chisels, and with these, of course, they could not shape smoothly the side of the stone which contained flints. At the back of one of the stelae Stephens found that flints had been picked out, leaving holes which formed flaws in the sculpture. Nothing can more plainly indicate the limitations imposed upon these wonderful artists by the circumstances of their culture. They were in the Stone Age, but it was a Stone Age so glorified by their skill that it would put to shame many modern nations armed with tools of precision. Mr. A. P. Maudslay visited Copan in 1884, and in the course of his investigations excavated one of the mounds. He corroborates the statement of Stephens that the monuments of Copan show no traces of buildings such as are found in Yucatan. The mound excavated ran almost to a point. On the east side were the remains of steps. The upper part was formed of rough blocks of stone interspersed with layers of cement and sand. The lower part of the mound was formed of stone and earth, and below ground-level, digging 12 feet down, he found nothing but solid earth. Some 6 feet from the top of the mound he came across a vessel of pottery containing "a bead-shaped