New York: Alfred A. Knopf, 1935., 1935. First edition. First U. S. edition. 8vo. Originally published in Germany. using the title "Der Schatz Der Sierra Madre." Set in Mexico in the 1920s, two hard-luck Americans, Fred Dobbs and Bob Curtin, who've been cheated out of their wages from a construction job in Tampico, team up with Howard, a wise old prospector, on a quest for gold in the remote Sierra Madre mountains. "Gold is a very devilish sort of thing, believe me, boys. In the first place, it changes your character entirely. When you have it your soul is no longer the same as it was before. No getting away from that. You may have so much piled up that you can't carry it away; but, bet your blessed paradise, the more you have, the more you want to add, to make it just that much more. Like sitting at roulette. Just one more turn. So it goes on and on and on. You cease to distinguish between right and wrong. You can no longer see clearly what is good and what is bad. You…