Makran is, in short, a country full of long narrow valleys running east and west, the longest and most important being the valley of Kej. The main drainage of the country reaches the sea by a series of main channels running south, which, inasmuch as they are driven almost at right angles across the general run of the watersheds, necessarily pass through a series of gorges of most magnificent proportions, which are far more impressive as spectacles than they are convenient for practical road-making. Thus Makran is very much easier to traverse from east to west than it is from north to south. I have, perhaps, said enough to indicate that the old highways through Makran, however much they may have assisted trade and traffic between East and West, could only have been confined to very narrow limits indeed. It is, in fact, almost a one-road country. Given the key, then, to open the gates of such channels of communication as exist, there is no difficulty in following them up, and the identification of successive stages becomes merely a matter of local search. We know where the old Arab cities _must_ have been, and we have but to look about to find their ruins. The best key, perhaps, to this mediæval system is to be found in a map given by the Baghdad traveller, Ibn Haukal, who wrote his account of Makran early in the tenth century, and though this map leaves much to be desired in clearness and accuracy, it is quite sufficient to give us the clue we require at first starting. In the written geographical accounts of the country, we labour under the disadvantage of possessing no comparative standard of distance. The Arab of mediæval days described the distance to be traversed between one point and another much as the Bedou describes it now. It is so many days' journey. Occasionally, indeed, we find a compiler of more than usual precision modifying his description of a stage as a long day's journey, or a short one. But such instances are rare, and a day's journey appears to be literally just so much as could conveniently be included in a day's work, with due regard to the character of the route traversed. Across an open desert a day's journey may be as much as 80 miles. Between the cities of a well-populated district it may be much less. Taking an average from all known distances, it is between 40 and 50 miles. Nor is it always explained whether the day's journey is by land or sea, the unit "a day's journey" being the distance traversed independent of the means of transit.