| | Report (volume) | GEOLOGICAL SURVEY GEOKGE OTIS SMITH, DIRECTOR THE GOLD PLACERS OF PARTS OF SEWARD PENINSULA, ALASKA INCLUDING...H. BROOKS__________________ DEVELOPMENT OF THE MINING INDUSTRY, BY ALFRED H. BROOKS_____ Foreword __...13 J9 24 28 Growth of mining from 1902 to 1904___________________ 31 Mining developments in 1905-6_...classification of placers___________________ 114 Gold in bed rock_______________________________ 116 ...mineralization________._______________ 124 Separation of gold from bed rock_____________________ 125 Transportation |
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