In the latter part of the fifteenth century died Tupac Inca Yupanqui, one of the most renowned of the "Children of the Sun," who, carrying the Peruvian arms across the burning sands of Atacama, penetrated to the remote borders of Chili, while in the opposite direction he enlarged the limits of the empire by the acquisition of the southern provinces of Quito. The war in this quarter was conducted by his son Huayna Capac, who succeeded his father on the throne, and fully equalled him in military daring and in capacity for government. Under this prince, the whole of the powerful state of Quito, which rivalled that of Peru itself in wealth and refinement, was brought under the sceptre of the Incas; whose empire received, by this conquest, the most important accession yet made to it since the foundation of the dynasty of Manco Capac. The remaining days of the victorious monarch were passed in reducing the independent tribes on the remote limits of his territory, and, still more, in cementing his conquests by the introduction of the Peruvian polity. He was actively engaged in completing the great works of his father, especially the high-roads which led from Quito to the capital. He perfected the establishment of posts, took great pains to introduce the Quichua dialect throughout the empire, promoted a better system of agriculture, and, in fine, encouraged the different branches of domestic industry and the various enlightened plans of his predecessors for the improvement of his people. Under his sway, the Peruvian monarchy reached its most palmy state; and under both him and his illustrious father it was advancing with such rapid strides in the march of civilization as would soon have carried it to a level with the more refined despotisms of Asia, furnishing the world, perhaps, with higher evidence of the capabilities of the American Indian than is elsewhere to be found on the great western continent.--But other and gloomier destinies were in reserve for the Indian races.