R. A. F. Penrose, Popular Science Monthly (1912)
“ They remembered the cruelties that had been practised by the early explorers of Mexico and South America in their mad rush for gold, how the land had been devastated, towns destroyed and whole tribes almost annihilated by the plunderers. They knew that there would be a rush to California if its wealth became known, and they feared that the man of their own day would be no more conscientious in his methods of securing gold than had been the man of the sixteenth century. ”
