The Ancient Geography of India. I. The Buddhist Period, including the Campaigns of Alexander, and the Travels of Hwen-Thsang c4.41

c4.41

If the measures of distance by sea had been increased in the same proportion, or had been estimated at the same value, as the measures of distance by land, all the places would have retained the same relative positions. But the consequence of Ptolemy's unequal estimate of the value of land and sea distances was to