When Henry Ford had introduced the Model T in 1908, the Amazon had been the world’s sole source of rubber. The wild popularity of these automobiles, and the seemingly insatiable demand for rubber that accompanied them, had ignited a frenzy in South America that rivaled the California gold rush. In The Sea and the Jungle, H. M. Tomlinson complained that the only thing Brazilians saw in their rich rain forests in 1910 was rubber.
