E/MJ : engineering and mining journal . MININO DIST ^5 • /V „. NUCHLK ^ -^ mn, ^ jtiTfCS yflth 10^ SOVr^ MAP OF COUNTRY ALONG THE ALASKAN GOVERNMENT RAILROAD with pack horses. The information gained on theseexpeditions was such as to warrant further workto determine the extent of the promising ores consist of sulphides of copper, lead, zinc,and iron, with high silver and gold content. Silver isassociated with the lead sulphides, or carbonateswhere they have been formed by surface alteration,and the gold occurs with the copper. High assays ofsilver are common, and gold nins from a

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E/MJ : engineering and mining journal . MININO DIST ^5 • /V „. NUCHLK ^ -^ mn, ^ jtiTfCS yflth 10^ SOVr^ MAP OF COUNTRY ALONG THE ALASKAN GOVERNMENT RAILROAD with pack horses. The information gained on theseexpeditions was such as to warrant further workto determine the extent of the promising ores consist of sulphides of copper, lead, zinc,and iron, with high silver and gold content. Silver isassociated with the lead sulphides, or carbonateswhere they have been formed by surface alteration,and the gold occurs with the copper. High assays ofsilver are common, and gold nins from a trace to

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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectmineralindustries