Mark Twain,
Roughing It — Chapter XXXVI
(1872)
“ There is nothing so aggravating as silver milling. There never was any idle time in that mill. There was always something to do. It is a pity that Adam could not have gone straight out of Eden into a quartz mill, in order to understand the full force of his doom to "earn his bread by the sweat of his brow." Every now and then, during the day, we had to scoop some pulp out of the pans, and tediously "wash" it in a horn spoon—wash it little by little over the edge till at last nothing was left but some little dull globules of quicksilver in the bottom. ”
