As on the Eastern, so also on the Western hemisphere. On all continents the rainbow in the heavens is a perpetual memorial of the covenant made between God and man--the sign that behind the wonders of nature dwells the still more wonderful First Cause and Author of them all. The Peruvians, far back in the centuries of existence on the continent of South America, had preserved a tradition of a great event which, although it had taken place on another hemisphere, yet had been, by some means, transmitted to theirs, and, tracing from it the story of their national origin, they carried this emblem as sign of the lineage which they claimed as being, as they called themselves, "_The Children of the Skies_." Thus it was that under the standard of a "_Rainbow_" the armies of the Incas of Peru valiantly resisted the invasions of Pizzaro when, in the sixteenth century, the South American Continent came under the domination of Spain. National emblems were borne farther north on the Northern continent by another nation, even yet more ancient than the Peruvians. Embedded in the ruins of buried cities of the Aztecs, in Mexico, are found the memorials of a constructive and artistic people, whose emblem of the "_Eagle with outstretched wings_," repeated with patriotic iteration in the stone carvings of their buildings, has thus come down to us the mute declarant of their national aspirations. The nation itself as a power has long since passed away, but the outlines of their emblem still preserve the ideals of the vanished race. [Illustration: 3. TORTOISE TOTEM.] A living instance of much interest also evidences the adherence to national emblems among the earlier inhabitants of North America. Long before the invading Europeans first landed on the shores of the North Atlantic coasts, the nomad Red Indian, as he travelled from place to place through the fastnesses of the forests, along the shores of the great lakes, over the plains of vast central prairies, or amid the mountains that crown the Pacific slope, everywhere attested the story of his descent by the "Totem" of his family. This sign of the Tortoise (3), the Wolf (4), the Bear, or the Fish, painted or embroidered on his trappings or carved upon his weapons, was displayed as evidence of his origin, and whether he came as a friend or advanced as a foe, its presence nerved him to maintain the reputation of his family and the honour of his tribe. [Illustration: 4. WOLF TOTEM.]