All sorts of labor-saving machines were invented to facil itate the separation of the gold from gravel and soil.
Manufacturers of rubber goods, rifles, pistols, bowie knives, etc., can scarcely supply the demand."  All sorts of labor-saving machines were invented to facil itate the separation of the gold from gravel and soil.  Patented machines, cranks, pumps, overshot wheel attachments, engines, dredges for river-beds, supposed to be full of gold, and even diving-bells, were made and sold.