acquaintance with its localities, he readily comprehends the character of other districts when obliged to observe them for the first time. For the hills, valleys, plains, rivers, and marshes of Tuscany, for example, have a certain resemblance to those elsewhere; so that from a knowledge of the natural features of that province, similar knowledge in respect of other provinces may readily be gained. The Prince who is wanting in this kind of knowledge, is wanting in the first qualification of a good captain for by it he is taught how to surprise an enemy, how to choose an encampment, how to lead his army on a march, how to array it for battle, and how to post it to the best advantage for a siege.

Among the commendations which Philopoemon, Prince of the Achaians, has received from historians is this — that in times of