Ancient River Beds    The Ancient Channels    Forest Hill Divide    Gold in Ancient River Channels    Mysteries of the Ancient Rivers    Born Before the Flood    Relics of the Stone Age    The Father Lode of California Auriferous Gravels in Placer County    1873    1885 Cost of Mining   Mining at Dutch Flat and Gold Run   Iowa Hill Canal   Hogsback Mine Tunnel   The Red Point Drift Gravel Mine   A Worthy Enterprise Drift Mining    Interesting Mine Model, Hidden Treasure    Inside a Drift Mine,1890     Drift Mining,1888    Drift Mining Operations    Drift Mining in Placer Co.    Placer Co., Hogsback Mine    Our Drift Mines    Electric Power in Drift Mining, 1893    Prospecting Drift Mines by Boring, 1893    California Drift Mining, 1899 Forest Hill Divide Mines   Cement Mining in Placer County,1867   1866-1869   1870-1879   1880-1889   1890-1894   1895-1899   1900 to 1904, V 80-89   1905 to 1909, V 90-99 Gravel Mining in Placer County    The May Flower Gravel Mine Company    The Strike at the Mayflower Mine    Gravel Mining in Placer County, 1892 Hydraulic Mining    Early Hydraulic Mining    The Stewart Bill and Drift Mines    Profits of Hydraulic Mining    Gravel Mining,1874    The Miners Appeal    Hydraulic Gold Mining, 1875    Practical Treatise on Hydraulic Mining    The Drift Mining Interests    The little Giant Controversy    Mining at Dutch Flat and Gold Run Mining at Ophir    Ophir Mines, 1889    Ophir Mines, 1891 Placer County Mines    Mining in Placer County, 1868 
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