Mark Twain,
Roughing It — Chapter XLIV
(1872)
“ The "Ophir," the "Gould & Curry," the "Mexican," and other great mines on the Comstock lead in Virginia and Gold Hill were turning out huge piles of rich rock every day, and every man believed that his little wild cat claim was as good as any on the "main lead" and would infallibly be worth a thousand dollars a foot when he "got down where it came in solid." Poor fellow, he was blessedly blind to the fact that he never would see that day. So the thousand wild cat shafts burrowed deeper and deeper into the earth day by day, and all men were beside themselves with hope and happiness. ”
