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 RELATIONS WITH ROME 225 the Yueh-chi monarch, who now undertook the easier task of attacking India. Success in this direction com- pensated for failure against the power of China, and the Yueh-chi dominion was gradually extended (90 to 100 A. D.) all over Northwestern India, with the excep- tion of Southern Sind, probably as far east as Benares. The conquered Indian provinces were administered by military viceroys, to whom apparently should be attrib- uted the large issues of coins known to numismatists as those of the Nameless King. These pieces, mostly copper, but including a few in base silver, are certainly contemporary with Kadphises II, and are extremely common all over Northern India from the Kabul valley to Benares and Ghazipur on the Ganges. The Yueh-chi conquests opened up the path of com- merce between the Roman empire and India. Kadphises I, who struck coins in bronze or copper only, imitated, after his conquest of Kabul, the coin- age either of Augustus in his later years, or the similar coinage of Tibe- rius (14 -to 38 A. D.). When the Roman gold of the early emperors began to pour into India in payment for the silks, spices, gems, and dye-stuffs of the East, Kadphises II perceived the advantage of a gold currency, and struck an abundant issue of Orientalized aurei, agreeing in weight with their prototypes, and not much inferior in purity. In South- ern India, which, during the same period, maintained an active maritime trade with the Roman empire, the local