XII. Account of Books. - 1. Voyages and discoveries in South America: The first up the river of Amazons to Quito in Peru, and back again to Brazil, performed at the command of the king of Spain, by Christopher D'Acugna. The second, up the river of plate, and thence by land to the mines of Potosi, by M. Acarete. The third, from Cayenne in to Guiana, in search of the lake of parima, reputed the richest place in the world, by M. Grillet, and bechamel. Done into english from the originals, being …