. Annals of the New York Academy of Sciences. Science. A/7A/7/ "••//,. ANNALS OF THE NEW YORK ACADEMY OF SCIENCES, VOLUME III. I.—The Patio and Cazo Process of Amalgamating Silver Ores. BY THOMAS EGLESTON. Read, October 1st, 1883. The process of amalgamation which is still used both in Mexico and Chili, is called the American method of amal- gamation, in order to distinguish it from the process used so long at Freiberg, known as the Freiberg Barrel Amalgama- tion, and that which has now for so man}- years been almost exclusively used in the western part of this country, known as Pan Amalg
. Annals of the New York Academy of Sciences. Science. A/7A/7/ "••//,. ANNALS OF THE NEW YORK ACADEMY OF SCIENCES, VOLUME III. I.—The Patio and Cazo Process of Amalgamating Silver Ores. BY THOMAS EGLESTON. Read, October 1st, 1883. The process of amalgamation which is still used both in Mexico and Chili, is called the American method of amal- gamation, in order to distinguish it from the process used so long at Freiberg, known as the Freiberg Barrel Amalgama- tion, and that which has now for so man}- years been almost exclusively used in the western part of this country, known as Pan Amalgamation. It is effected in two different ways, ac- cording to the country in which it is used. In Mexico it is called the Mexican or Patio method, and in Chili it is known as the Chilian or Cazo method. These processes do not differ essentially, except in the mechanical appliances which are used for carrying them on. The Patio method was, until questioned by Dr. Percy,* supposed to have been invented in Mexico, about 1557, for beneficiatiug the silver ores which occur there. 2-6 Percys Silver and Gold, Part I, p. 562, London, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York Academy of Sciences. New York, New York Academy of Sciences
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