FORMOSA, a northern territory of the Argentine republic, with the Pilcomayo and Bermejo forming its northern and south ern boundaries. Estimated area, 29,143 sq.m. It is a vast plain, sloping gently to the south-east, covered with grasslands, marshes and tropical forests. The interior is still occupied by tribes of Indians. The climate is hot, the summer temperature rising to a maximum of 104° F. Timber-cutting for the quebracho in dustry is the principal occupation of the settlers, though stock raising and agriculture engage some attention in the settlements near the Paraguay. The capital, Formosa (founded 1879), is a small settlement on the Paraguay with a population of about I0,000 in 1921. The population of the territory was estimated to be 32,300 in 1934. The nomadic Indians are estimated at 8,000.