MINING NOMENCLATURE ; COINAGE. 



55 



of a mass of ores as of an organized body, of which they augment or diminish the 

 natural heat. Like physicians, who in ages of barbarism divided all ailments and all 

 remedies into two classes, hot and cold, the azogzteros see nothing in ores but sub- 

 stances which must be heated by sulphates if they are too cold, or cooled by alkalies 

 if too warm." 



SILVER: SYSTEM OF " BENEFICIATING " EMPLOYED (1880). 



RfiSU.Mfi. 



Kilograms. 



By patio . 360,284 317 



By tonel 24,503 843 



By lixiviacion 16,107 77' 



By fire 142,224 667 



Mining N'onieticlature. — The following translations will be found to contain most 

 of the terms in general use about mines in Me.xico. Assessments, exhibiciones ; 

 assay, ensaye ; a claim, pertenencia ; blast, cohete ; boiler, caldera ; crosscut, crucero ; 

 croppings, creston ; drain, desaguar ; drill-h-^le, barreno ; dividends, dividendos ; 

 dump pile, terreros ; drill, taladro ; dip of ledge, echada ; engine, maquina de vapor ; 

 extension, proroga ; front wall, respaldo alto-, foot wall, respaldo bajo; gold, oro; 

 hand-drill, barrena ; hoisting whim, malacate; iron, hierro; locating, denuncio ; mill 

 and works, hacienda; mine corners, mojoneras; mine, mina; ore, metal; powder, 

 polvora; pump, bomba; quicksilver, azogue; shaft, tiro; silver, plata ; slag, esco- 

 rias ; shareholders, accionistas ; steam drill, perforador ; tunnel, socavon ; ton, tone- 

 lada; vein, veta; arroba, 25 pounds; quintal, 100 pounds; carga, 300 pounds; 

 monton, 3,000 pounds ; marco, about ^^8.85 ; metro, 39.37 inches ; vara, 2 feet 9 

 inches. 



