72. Next to them is Arachosia, which on the right extends as far as India. It is abundantly watered by a river much smaller than the Indus, that greatest of rivers, which gives its name to the surrounding regions; in fact their river flows out of the Indus, and passes on till it forms the marsh known as Arachotoscrene. Its leading cities are Alexandria, Arbaca, and Choaspa. 73. In the most inland districts of Persia is Gedrosia; which on its right touches the frontier of India, and is fertilized by several rivers, of which the greatest is the Artabius. There the Barbitani mountains end, and from their lowest parts rise several rivers which fall into the Indus, losing their own names in the greatness of that superior stream. They have several islands, and their principal cities are Sedratyra and Gynæcon. 74. We need not detail minutely every portion of the sea-coast on the extremity of Persia, as it would lead us into too long a digression. It will suffice to say that the sea which stretches from the Caspian mountains along the northern side to the straits above mentioned, is nine thousand furlongs in extent; the southern frontier, from the mouth of the Nile to the beginning of Carmania, is fourteen thousand furlongs. 75. In these varied districts of different languages, the races of men are as different as the places. But to describe their persons and customs in general terms, they are nearly all slight in figure, swarthy or rather of a pale livid complexion; fierce-looking, with goat-like eyes, and eyebrows arched in a semicircle and joined, with handsome beards, and long hair. They at all times, even at banquets and festivals, wear swords; a custom which that excellent author Thucydides tells us the Athenians were the first of the Greeks to lay aside. 76. They are generally amazingly addicted to amatory pleasures; each man scarcely contenting himself with a multitude of concubines: from unnatural vices they are free. Each man marries many or few wives, as he can afford them, so that natural affection is lost among them because of the numerous objects of their licence. They are frugal in their banquets, avoiding immoderate indulgence and especially hard drinking, as they would the plague. 77. Nor, except at the king's table, have they any settled time for dining, but each man's stomach serves as his sun-dial; nor does any one eat after he is satisfied. 78. They are marvellously temperate and cautious, so that when sometimes marching among the gardens and vineyards of enemies, they neither desire nor touch anything, from fear of poison or witchcraft. 79. They perform all the secret functions of nature with the most scrupulous secrecy and modesty.