d G is raised. This is pro- washings and exposures to the air and heat the gravel ing apparatus has been secured by Messrs. F. L. Rey- vided with a prong, which lifts the rod H and resets is removed clear down to the bed rock. nolds and M. T. Ash, of 315 Dearborn Street, Chi- the trip mechanism, at… … A HYDRAULIC-ELECTRIC SYSTEM OF PLACER MINING. TRAVELING CARDS FOR CAR ADVERTISING.
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