Miners Now Wash Gold from Sand by Machine
LIKE the old miner's gold pan, which washed gold from sand and rock, is the concentrating and amalgamating machine pictured at the left—except that it’s entirely automatic and adapted to the high-speed requirements of modern mining methods.
Water flowing down the sloping platform separates the gold from the sand and gravel with which it is found. Mechanical agitation is provided. The photo shows the inventor, J. H. Ratcliffe, California mining engineer, demonstrating his remarkable device.