Hints On Amalgamation And the General Care of Gold Mills
Hints On Amalgamation And the General Care of Gold Mills
W J William James Adams
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22 shows this tripod. The tripod is set within distance of the water pipe and the retort put in place, the hose connected and the re- ceiving kettle, partially filled with water, is put at a slight inclination with the end of the condensing pipe submerged in it an inch. A small fire of shavings and a little oily waste is started directly under the retort. This is gradually increased with either pine bark or wood, but slowly until all the air is driven out, and a little quicksilver begins to run.... Then the fire is in- creased and the retort kept at a cherry red till no more quicksilver can be collected, after tapping the pipe. When this is shown to be the case, the fire is withdrawn, the pipe taken out of the kettle, and the cover of the retort taken off. To prove that no more quicksilver is left, take a cold shovel, wet it and hold over the open retort, when it will be covered with a white film if any of the quicksilver remains. Before the retort has a chance to cool, dump out the retort metal into a pan set on an iron plate or directly on the plate, and scrape out any adhering gold.
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