while he was engaged all remained silent .... When he had snuffed up the powder through his nostrils, he remained silent for a while with his head inclined to one side and his arms placed on his knees. Then he raised his face heavenward, uttering certain words which must have been his prayer to the true God, or to him whom he held as God; after which all responded, almost as we do when we say amen; and this they did with a loud voice or sound. Then they gave thanks and said to him certain complimentary things, entreating his benevolence and begging him to reveal to them what he had seen. He described to them his vision, saying that the Cemi [spirits] had spoken to him and had predicted good times or the contrary, or that children were to be born, or to die, or that there was to be some dispute with their neighbors, and other things which might come to his imagination, all disturbed with that intoxication." [9] Clearly, from the point of view of priests and soothsayers, the place where huilca was first found and used in their incantations would be important. It is not strange to find therefore that the Inca name of this river was Uilca-mayu: the "huilca river." The pampa on this river where the trees grew would likely receive the name Uilca pampa. If it became an important city, then the surrounding region might be named Uilcapampa after it. This seems to me to be the most probable origin of the name of the province. Anyhow it is worth noting the fact that denizens of Cuzco and Ollantaytambo, coming down the river in search of this highly prized narcotic, must have found the first trees not far from Machu Picchu. Leaving the ruins of Machu Picchu for later investigation, we now pushed on down the Urubamba Valley, crossed the bridge of San Miguel, passed the house of Señor Lizarraga, first of modern Peruvians to write his name on the granite walls of Machu Picchu, and came to the sugar-cane fields of Huadquiña. We had now left the temperate zone and entered the tropics.