Huaca: A sacred or holy place or thing, sometimes a boulder. Often applied to a piece of prehistoric pottery. Mañana: To-morrow, or by and by. The "mañana habit" is Spanish-American procrastination. Mestizo: A half-breed of Spanish and Indian ancestry. Milpa: A word used in Central America for a small farm or clearing. The milpa system of agriculture involves clearing the forest by fire, destroys valuable humus and forces the farmer to seek new fields frequently. Montaña: Jungle, forest. The term usually applied by Peruvians to the heavily forested slopes of the Eastern Andean valleys and the Amazon Basin. Oca: Hardy, edible root, related to sheep sorrel. Quebrada: A gorge or ravine. Quipu: Knotted, parti-colored strings used by the ancient Peruvians to keep records. A mnemonic device. Roof-peg: A roughly cylindrical block of stone bonded into a gable wall and allowed to project 12 or 15 inches on the outside. Used in connection with "eye-bonders," the roof-pegs served as points to which the roof could be tied down. Sol: Peruvian silver dollar, worth about two shillings or a little less than half a gold dollar. Sorocho: Mountain-sickness. Stone-peg: A roughly cylindrical block of stone bonded into the walls of a house and projecting 10 or 12 inches on the inside so as to permit of its being used as a clothes-peg. Stone-pegs are often found alternating with niches and placed on a level with the lintels of the niches. Temblor: A slight earthquake. Temporales: Small fields of grain which cannot be irrigated and so depend on the weather for their moisture. Teniente gobernador: Administrative officer of a small village or hamlet. Terremoto: A severe earthquake. Tesoro: Treasure. Tutu: A hardy variety of white potato not edible in a fresh state, used for making chuño, after drying, freezing, and pressing out the bitter juices. Ulluca: An edible root. Viejo: Old. Bibliography of the Peruvian Expeditions of Yale University and the National Geographic Society Thomas Barbour: Reptiles Collected by Yale Peruvian Expedition of 1912. Proceedings of Academy of Natural Sciences of Philadelphia, LXV, 505-507, September, 1913. 1 pl. (With G. K. Noble:) Amphibians and Reptiles from Southern Peru Collected by Peruvian Expedition of 1914-1915. Proceedings of U.S. National Museum, LVIII, 609-620, 1921. Hiram Bingham: The Ruins of Choqquequirau. American Anthropologist, XII, 505-525, October, 1910. Illus., 4 pl., map. Across South America. Boston, Houghton Mifflin Company, 1911, xvi, 405 pp., plates, maps, plans, 8°. Preliminary Report of the Yale Peruvian Expedition. Bulletin of American Geographical Society, XLIV, 20-26, January, 1912. The Ascent of Coropuna. Harper's Magazine, CXXIV, 489-502, March, 1912. Illus. Vitcos, The Last Inca Capital. Proceedings of American Antiquarian Society, XXII, N.S., 135-196. April, 1912. Illus., plans.