The chief ports of this region are Iquique and Antofagasta, Pisagua being a smaller port visited only by the _caletero_ or the strictly freight boats. Iquique is a more agreeable city than in former days, when water was sometimes $2 a gallon, and people drank champagne, they said, because water was too expensive. Now the dust of the streets is laid by sprinklers, some people have bath rooms, a few even fountains in patios. Antofagasta is also a desert place, unattractive to look at, but with good shops, business houses, and fair hotels. The water comes a distance of nearly 200 miles, the source more than two miles above the sea. =Potash.= In addition to nitrates Chile possesses extensive beds of useful potash one of which is estimated to contain nearly 7,000,000 tons easy of exploitation. =Copper.= The property of the Chile Copper Company (one of the Guggenheim interests) at Chuquicamata is said to be the largest copper deposit known in the world. About 2000 of the 9600 acres of the claim are mineralized. The outcrop of copper is one and a half miles in length. It has been proved below to a width of 1800 feet and a length of 7500 feet. Ten of the 2080 shafts are over 1000 feet in depth, and at 1500 feet the ore is of commercial value. Over 700,000,000 tons of positive and probable ore have been developed, carrying an average value of 2.12 per cent copper. The reduction plant has a capacity of 15,000 tons a day, the refinery of 180,000,000 pounds a year. With a 90 per cent extraction the yield is 96 pounds of copper per ton. At the port of Tocopilla, north of Antofagasta, the Company has a power station where oil from California is used to generate a power of 24,000-27,000 kilowatts needed at Chuquicamata. This is transported by wire across country a distance of 100 miles. At normal prices the cost of copper production with delivery in New York or Europe is $121 a ton, or about 6 cents a pound; higher with war time conditions which still obtain (1921). From the 15,000 ton plant in full service 175,000,000 pounds of copper would be produced annually. In 1920, 55,617,000 pounds were produced, the largest amount from any mine in Chile. In 1916 important mines belonging to the Calama Mining Company were added to the Chile Company’s holdings.