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 efforts. And he saw that they knew what they were talking about.

In the end of the Bronze Age, at the dawn of history, they explained, the Indo-Aryan race, their own race, swept eastward from Scandinavia and the north of Europe, over the mountain barrier of Asia and conquered the Central Asian peoples—the Mongolians—with their long swords.

This was barely known, and only guessed at by certain remnants of the Aryan language found in Northern India, and inscriptions dug up from the mountains of Turkestan.

They believed, these scientists, that before the great Han dynasty of China, an Indo-Aryan race known as the Sacæ had ruled Central Asia. The forefathers of the Europeans had ruled the Mongolians. The ancestors of thousands of Central Asians of to-day had been white men—tall men, with long skulls, and yellow hair, and great fighters.

The earliest annals of China mentioned the Huing-nu—light-eyed devils—who came down into the desert. The manuscripts of antiquity bore the name of the Wusun—the "Tall Ones." And the children of the Aryan conquerors had survived, fighting against the Mongolians for several hundred years.

"They survive to-day," said the historian earnestly. "Marco Polo, the first European to enter