Annual report of the State Mineralogist for the year ending ... (1883)
California State Mining Bureau · Sacramento : California State Mining Bureau · leaf 35
28 … 29 quantity passing gradually increases till a second channel opens out, andlater on a third one, and so on. By this means the quantities of oil and steam passing to each burnercan, at any moment, be regulated with the greatest nicety, and perfectlyadjusted to each other. There are three burners in…
California State Mining Bureau · Mines and mineral resources · Gold mines and mining · Geology · Mineralogy
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