VALI'AUAISO. 



2S7 



The gr"at increase in the amount of bar silver exported in 1849 was due to the discovery of the 

 rich limn-* at Trea Puntaa ; ami tin- decrease in this metal, and partially of the bar copper also, in 

 1851, ai.'sc 1'n.ni tin ta< t that mining operations, both in Atacama and Coquimbo, were greatly 

 interrupted liy tin- revolutionary condition of the country. Indeed, some of the mines were 

 t.'m|M.rarily aKandoned l>y all the laborers for two or three months. Of the copper ores, much 

 moi< is .smelted than formerly ; new processes having rendered the operation more economical, 

 and vessels sailing from England with freights of light goods finding it convenient to fill 

 partially with coals, in which the mineral districts are wholly deficient. 



Tulle showing the principal Exports and their value. 



This includes flour made from roasted wheat harina loslaJa. 

 f Wheat or corn toasted and broken. 

 } Includes grease and tallow candles. 



