Explorations and field-work of the Smithsonian Institution in .. . Fig. 13.—A street of Copiapo, Fig. 14.—A miner in the Oficina Chacabucu. The pile of material is nitrateore or caliche. The miner works on a contract and piles up his caliche in thismanner. Later an engineer comes and measures the pile and estimates thequantity and grade and pays the miner accordingly. l6 SMITHSONIAN INSTITUTION other area of equal size. One reason for this is the lack of vegeta-tion. Meteorites falling in this area strike rocky ground and do notpenetrate deeply. Slight erosion brings them to the surfa
Explorations and field-work of the Smithsonian Institution in .. . Fig. 13.—A street of Copiapo, Fig. 14.—A miner in the Oficina Chacabucu. The pile of material is nitrateore or caliche. The miner works on a contract and piles up his caliche in thismanner. Later an engineer comes and measures the pile and estimates thequantity and grade and pays the miner accordingly. l6 SMITHSONIAN INSTITUTION other area of equal size. One reason for this is the lack of vegeta-tion. Meteorites falling in this area strike rocky ground and do notpenetrate deeply. Slight erosion brings them to the surface, and withweathering and disintegration at a minimum, the meteorites are pre-served. Wandering miners and prospectors pick up these heavy piecesand carry them to towns or camps in the hope that they may containsome valuable metal. When they are found to be free of any preciousmetal, they are discarded. Some find their way into the hands ofpeople who appreciate their value and are preserved, but many moreare lost. The writer obtained four meteorites and heard reports ofscores more. Many specimens
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectscienti, bookyear1912
