Arrian reckons the ſame diſtance to be 8505 ſtadia, or 1063 Greek miles, which divided by 8.5 gives 125 Greek miles, or 1000 ſtadia, for each day's ſail of twenty-four hours, which agrees exactly with Ptolemy. The real diſtance however appears to be about 13° of longitude, which in latitude 41° amounts to 682 Engliſh miles, which divided by 8.5 gives 80 Engliſh miles, or 87 Greek miles, equal to 696 ſtadia, for a day and night's ſail.
Herodotus again ſays, that the diſtance from Sindica to Themiſcyra is 3300 ſtadia, and that this was three days and three nights ſail. This allows 1100 ſtadia for every twenty-four hours fail, which is above the computation of Ptolemy. According to Mr. D'Anville, the diſtance is about 2640 ſtadia, or more than 118 Greek miles, in twenty-four hours.
I have thus examined the inſtances which Mr. Rennel thinks the faireſt and moſt to the purpoſe; and I ſubmit to the reader, whether I have not ſhewn, that the diſtance, which he has aſcribed to the ſhips of antiquity as a day's ſail, has not been by him underrated; and that 1000 ſtadia, which is the ſpace aſſigned by Ptolemy, is not very near the truth, on a medium computation.
