in another place, between the cities of Leptis Magna and Berenice, of three hundred and eighty-five Roman miles[7]: for the distance between Lebida (Leptis Magna) and Mesurata, the western extremity of the gulf, may be reckoned at fifty-eight geographic miles, equal to seventy-three Roman miles; so that this being deducted from the whole distance given, of three hundred and eighty-five M. P. we shall have a remainder of three hundred and twelve of the same for the distance between Mesurata and Bengazi, leaving a difference of only one mile between the diameter of the gulf thus deduced and that above stated of three hundred and thirteen. But although we may infer, from the coincidence of the two measurements, that the three hundred and twelve miles in question may be taken as distance _across_ the gulf, they are by no means stated to be such in the text; and if they had chanced to coincide with the circumference instead of the diameter of the gulf, they might just as well have been taken for the road-distance between Mesurata and Bengazi; the measurements which we find in the Itinerary of Antoninus, of the distance between Leptis Magna and Berenice, come nearer to the actual road-distance between these places, by one hundred and thirty Roman miles, than that which is obtained by adding the seventy-three miles between Lebida and Mesurata to the circumference of the gulf given by Pliny; for the whole distance of the Itinerary from Leptis to Berenice is not estimated at more than five hundred and sixty-eight Roman miles, while those above mentioned being added together would make no less than six hundred and ninety-eight. So that the circumference of the gulf which may be deduced from the Itinerary differs only from the actual circuit by road-distance in thirty-seven Roman miles, or twenty-nine and a half geographic.