A Remarkable Instance Is Related Of The Velocity Of The Currents In The Gulf, To The Southward Of Fernando Po.

In the month of June, a vessel performed the passage between Prince's Island and St. Thomas in twenty hours, which generally occupies from eight to ten days.

The distance is about ninety three miles, and the vessel must have averaged from four to six miles per hour. The harmattan is said not to extend to the southward of Fernando Po, but this has not yet been fully ascertained.

The passage through the gulf from Fernando Po to Sierra Leone, is generally extremely long and tedious, owing to the prevalence of calms and the different currents. It is usually made either by running to the southward and getting into the southeast trade, or by keeping in shore, as far as Cape Palmas, so as to benefit by the landwinds. The former method is generally recommended by the merchantmen as being safer and quicker, for a vessel adopting the latter, is more under the dangerous influence of the currents, besides being obliged to keep close to the shore; it is also adopted by the merchantmen in their homeward voyage. Sometimes vessels by taking a mean between these two methods, get between two different winds, by which means they lose the benefit of both, and are delayed by calms and rains. This part, according to accurate information, is at the distance of sixty miles from the land, so that vessels should pass either far without or else within that distance on leaving Fernando Po.

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