north latitude, a ship may expect to meet the Trades; but she cannot calculate with any certainty upon catching them till she arrives at the parallel of 28 deg..

On first reaching the Trade-wind it will be found to blow very nearly from due east, and with this a course is easily steered past or amongst the Canaries, and thence for the Cape de Verdes.

Some navigators pass within this group, others keep so far out as barely to make San Antonio; and this, I think, is considered the best route.

As the ship proceeds to the southward, the wind draws gradually round from the east to north-east, and eventually to north-north-east, and even to north, at the southern margin of the north-east Trade-wind.
The position of this margin or southern edge, which in technical language is called the equatorial limit of the Trade, varies considerably with the season of the year.

From December to May inclusive it frequently reaches as far as the 3rd degree of north latitude, though it ranges about 5 deg.