Monthly bulletin of the International Bureau of the American Republics, International Union of American Republics . , which proved to be rich, wasdenounced as the Mina de San Rafael on the Oreamunos lode. In theyear 1825 a lessee made a handsome fortune by treating the ore in anarrastra constructed on the Rio Grande, 10 miles distant, to whichpoint the ore was transported in ox carts. It was at these works thathe, with the permission of the Government, made the first Costa Rican 1030 INTERNATIONAL BUREAU OF THE AMERICAN REPUBLICS. gold coin. The assay office of the Swiss-American Bank of San F
Monthly bulletin of the International Bureau of the American Republics, International Union of American Republics . , which proved to be rich, wasdenounced as the Mina de San Rafael on the Oreamunos lode. In theyear 1825 a lessee made a handsome fortune by treating the ore in anarrastra constructed on the Rio Grande, 10 miles distant, to whichpoint the ore was transported in ox carts. It was at these works thathe, with the permission of the Government, made the first Costa Rican 1030 INTERNATIONAL BUREAU OF THE AMERICAN REPUBLICS. gold coin. The assay office of the Swiss-American Bank of San Fran-cisco, California, certified to assays made of ores from this bonanza ofvalues ranging from $600 to $4,000. Z« Cigüeña.—This superficial work jdelded as much ore as ElBalsa. The last work done there was in 1875. The sum of $21,000is said to have been realized from 11 feet of ore taken from this ore was treated at a place called La Union, on the Rio del Que-brada Honde, by an arrastra and a stamj^ mill of primitive pattern,the ruins of which may yet be seen. From the poorest kind of. Preparing mine timbers in Costa Rica. amalgamation they realized $84 per ton. That these ores were richis indicated by tests I made from what remains of the old tailingsdumps, which show the presence of free gold and amalgam, and valuesfrom $35 to $80 per ton. ^^El Fuego.—This bonanza was discovered between the Guapinoland La Cigüeña and, like them, was but a surface working. Theproposition of draining this work was at the time of abandonment con-sidered too great an undertaking. Authorities familiar with this mine INTERNATIONAL BUREAU OF THE AMERICAN REPUBLICS. 1031 estimated the ore then in sight to be at least 1,000 tons and valued at$300,000. One shipment of 52 tons, made l)y the Aguaeate, Companyto the Royal Saxony Smelting Works, near Freiburg, Germany, in1874, was bought on the basis of $ gold and $ silver perton, a total value of $ per ton. Don Eusébi
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