At the end of the day we crossed the Urubamba River on a fine steel bridge and found ourselves in the prosperous little town of Quillabamba, the provincial capital. Its main street was lined with well-filled shops, evidence of the fact that this is one of the principal gateways to the Peruvian rubber country which, with the high price of rubber then prevailing, 1911, was the scene of unusual activity. Passing through Quillabamba and up a slight hill beyond it, we came to the long colonnades of the celebrated sugar estate of Santa Ana founded by the Jesuits, where all explorers who have passed this way since the days of Charles Wiener have been entertained. He says that he was received here "with a thousand signs of friendship" ("mille témoignages d'amitié"). We were received the same way. Even in a region where we had repeatedly received valuable assistance from government officials and generous hospitality from private individuals, our reception at Santa Ana stands out as particularly delightful. Don Pedro Duque took great interest in enabling us to get all possible information about the little-known region into which we proposed to penetrate. Born in Colombia, but long resident in Peru, he was a gentleman of the old school, keenly interested, not only in the administration and economic progress of his plantation, but also in the intellectual movements of the outside world. He entered with zest into our historical-geographical studies. The name Uiticos was new to him, but after reading over with us our extracts from the Spanish chronicles he was sure that he could help us find it. And help us he did. Santa Ana is less than thirteen degrees south of the equator; the elevation is barely 2000 feet; the "winter" nights are cool; but the heat in the middle of the day is intense. Nevertheless, our host was so energetic that as a result of his efforts a number of the best-informed residents were brought to the conferences at the great plantation house. They told all they knew of the towns and valleys where the last four Incas had found a refuge, but that was not much. They all agreed that "if only Señor Lopez Torres were alive he could have been of great service" to us, as "he had prospected for mines and rubber in those parts more than any one else, and had once seen some Inca ruins in the forest!" Of Uiticos and Chuquipalpa and most of the places mentioned in the chronicles, none of Don Pedro's friends had ever heard. It was all rather discouraging, until one day, by the greatest good fortune, there arrived at Santa Ana another friend of Don Pedro's, the teniente gobernador of the village of Lucma in the valley of Vilcabamba--a crusty old fellow named Evaristo Mogrovejo. His brother, Pio Mogrovejo, had been a member of the party of energetic Peruvians who, in 1884, had searched for buried treasure at Choqquequirau and had left their names on its walls. Evaristo Mogrovejo could understand searching for buried