Andrew J. Lamoureux and Philip Lake, 1911 Encyclopædia Britannica (1911)
“ Much the greater part of the republic is fertile and adapted to cultivation. Irrigation, which has not been used to any great extent, is needed in some parts of the country for the best results, but in others, as in the valleys and on the northern slopes of the Maritime Andes, the rainfall is sufficiently well distributed to meet most requirements. The long dry season of the llanos and surrounding slopes, which have not as yet been devoted to cultivation, will require a different system of agriculture with systematic irrigation. ”
