My observations on the currents which have heretofore proved fatal to a vast number of vessels, and their crews on the western coast of Africa, are made with a view to promote the further investigation of this subject, as well as to caution the unwary mariner against their too often disastrous effects. It gives me sincere pleasure, to acknowledge the services rendered me by my respectable friend, Anthony Bleecker, Esquire, of New York, who has, at my request, looked over the whole of my manu script, and suggested some very important explanations. I have been governed, in my corrections, by his advice, which was of a character that can only ?ow from the most pure and disinterested motives.