Page:Arrian's Voyage Round the Euxine Sea Translated.djvu/135

132 with rocks, hoals, and breakers, and hazy weather. He mentions, that they could not run more than 30 miles on one tack, and that. it was their cutom to make one hore about un-et, then to tack, and to tand for the oppoite hore until day-break. This is nearly the ame progres decribed by Herodotus. Mr. Irwin adds, that an Englih hip had been wrecked there, from the-difficulty of the navigation, not ix months before; and at one time-he regarded his own ituation as deperate.

They were beides twenty days (from -April 16th to May 6th), in failing from Mocha to Zambo, which is a difference of not; more than 11° of latitude and 6° of longitude, which is little more than 42 Englih miles, or about 46 Greek miles, each day of twenty-four hours. Perhaps it was from the difficulty of this navigation that Herodotus intimates, that it was performed with oars only; and indeed Mr.-Irwin's account proves that the management of ails in this ea is difficult, even in the preent age, and to Englih ailors.

The ixth and lat intance I hall examine is the one Mr. Rennel brings from Herodotus, who fays, that the navigation from the Thracian Boporus on the Euxine ea to the mouth of the Phais is a voyage of eight days and nine nights, or, as Mr. Rennel counts it, of ixteen days. This ditance he reckons at 38 miles each day. Herodotus etimates this ditance at 11,100 tadia, which gives for 8½ days ail more than 1300 tadia for every twenty-four hours, equal to 162 Greek miles, or 148 Englih miles. Arrian