Tiahuanaco, at the southern end of Lake Titicaca, in Bolivia, is famous for the remains of a pre-Inca civilization. Unique among prehistoric remains in the highlands of Peru or Bolivia are its carved monolithic images. Although they have suffered from weathering and from vandalism, enough remains to show that they represent clothed human figures. The richly decorated girdles and long tunics are carved in low relief with an intricate pattern. While some of the designs are undoubtedly symbolic of the rank, achievements, or attributes of the divinities or chiefs here portrayed, there is nothing hieroglyphic. The images are stiff and show no appreciation of the beauty of the human form. Probably the ancient artists never had an opportunity to study the human body. In Andean villages, even little children do not go naked as they do among primitive peoples who live in warm climates. The Highlanders of Peru and Bolivia are always heavily clothed, day and night. Forced by their climate to seek comfort in the amount and thickness of their apparel, they have developed an excessive modesty in regard to bodily exposure which is in striking contrast to people who live on the warm sands of the South Seas. Inca sculptors and potters rarely employed the human body as a motif. Tiahuanaco is pre-Inca, yet even here the images are clothed. They were not represented as clothed in order to make easier the work of the sculptor. His carving shows he had great skill, was observant, and had true artistic feeling. Apparently the taboo against "nakedness" was too much for him. Among the thirty-six islands in Lake Titicaca, some belong to Peru, others to Bolivia. Two of the latter, Titicaca and Koati, were peculiarly venerated in Inca days. They are covered with artificial terraces, most of which are still used by the Indian farmers of to-day. On both islands there are ruins of important Inca structures. On Titicaca Island I was shown two caves, out of which, say the Indians, came the sun and moon at their creation. These caves are not large enough for a man to stand upright, but to a people who do not appreciate the size of the heavenly bodies it requires no stretch of the imagination to believe that those bright disks came forth from caves eight feet wide. The myth probably originated with dwellers on the western shore of the lake who would often see the sun or moon rise over this island. On an ancient road that runs across the island my native guide pointed out the "footprints of the sun and moon"--two curious effects of erosion which bear a distant resemblance to the footprints of giants twenty or thirty feet tall.