3.

Between these people, Hyrcania, and Parthia as far as Aria lies a vast and arid desert, which they crossed by long journeys, and overran Hyrcania, the Nesæan country, and the plains of Parthia. These people agreed to pay a tribute on condition of having permission to overrun the country at stated times, and to carry away the plunder. But when these incursions became more frequent than the agreement allowed, war ensued, afterwards peace was made, and then again war was renewed. Such is the kind of life which the other Nomades also lead, continually attacking their neighbours, and then making peace with them.