One of the buildings was rounded at one end. Another, standing by itself at the south end of a little pampa, had neither doors nor windows. It was rectangular. Its four or five niches were arranged with unique irregularity. Furthermore, they were two feet deep, an unusual dimension. Probably this was a storehouse. On the east side of the pampa was a structure, 120 feet long by 21 feet wide, divided into five rooms of unequal size. The walls were of rough stones laid in adobe. Like some of the Inca buildings at Ollantaytambo, the lintels of the doors were made of three or four narrow uncut ashlars. Some rooms had niches. On the north side of the pampa was another rectangular building. On the west side was the edge of a stone-faced terrace. Below it was a partly enclosed fountain or bathhouse, with a stone spout and a stone-lined basin. The shapes of the houses, their general arrangement, the niches, stone roof-pegs and lintels, all point to Inca builders. In the buildings we picked up several fragments of Inca pottery. Equally interesting and very puzzling were half a dozen crude Spanish roofing tiles, baked red. All the pieces and fragments we could find would not have covered four square feet. They were of widely different sizes, as though some one had been experimenting. Perhaps an Inca who had seen the new red tiled roofs of Cuzco had tried to reproduce them here in the jungle, but without success. At dusk we all returned to Espiritu Pampa. Our faces, hands, and clothes had been torn by the jungle; our feet were weary and sore. Nevertheless the day's work had been very satisfactory and we prepared to enjoy a good night's rest. Alas, we were doomed to disappointment. During the day some one had brought to the hut eight tame but noisy macaws. Furthermore, our savage helpers determined to make the night hideous with cries, tom-toms, and drums, either to discourage the visits of hostile Indians or jaguars, or for the purpose of exorcising the demons brought by the white men, or else to cheer up their families, who were undoubtedly hiding in the jungle near by. The next day the savages and our carriers continued to clear away as much as possible of the tangled growth near the best ruins. In this process, to the intense surprise not only of ourselves, but also of the savages, they discovered, just below the "bathhouse" where we had stood the day before, the well-preserved ruins of two buildings of superior construction, well fitted with stone-pegs and numerous niches, very symmetrically arranged. These houses stood by themselves on a little artificial terrace. Fragments of characteristic Inca pottery were found on the floor, including pieces of a large aryballus. Nothing gives a better idea of the density of the jungle than the fact that the savages themselves had often been within five feet of these fine walls without being aware of their existence.