Survey of the jungle lowlands, yungas, and altiplano points out that there are really "three Bolivias" each "with its offering to the country's destiny." Shows processing of rubber, chinchona, coca; agricultural methods; silver and tin mining. Scenes of the mountain roads, Indian factory workers in La Paz, and the Cochabamba trolley. (Jane M. Loy, Latin American Research Review, vol.12 no.3, 1977)