latitude observed the preceding noon, by which we judged ourselves not less than 17 leagues from them.  At midnight we were exactly in their parallel, and saw them very distinctly by the light of the moon, which was very clear; their latitude, deduced from the preceding, as well as following meridian observations, is 30 deg.. 12’. north, which is 12 miles to the northward of what they are generally placed, either in tables or charts; their longitude, by our time-keeper, is 15 deg.. 53’. west.  I had never seen these rocks before, and always understood them to be small inconsiderable spots, but the largest is so high as to be seen at the distance of seven or eight leagues, and appears to be about a mile and a half in length, from north-west to south-east; there are a few scattered rocks appear above water, to the westward; and I have been told, that a reef of considerable extent stretches out from them to the westward.

From the time of our passing these rocks until the evening of the 3d, we had very light airs and variable, but mostly from the south-west quarter, and every day found we were affected by a southerly current of 10 or 12 miles in 24 hours.  The wind now sprung up from the northward, and we steered for the island of Teneriffe, directing our course by the longitude determined from the time-keeper, the account being 1 deg.. 04’. to the westward of it, and our lunar observations within three miles of it:  at day-light in the morning we saw the island of Teneriffe, and at noon Point de Nagara, or north-east point, bore south-west by south, distant five leagues; some of the convoy being considerably astern we brought to, and in the afternoon, there being a fresh of wind from the north-east, we bore away and made the signal for the convoy to make all the sail possible, in order, as we were strangers to Sancta Cruz road, that we might save day-light to the anchorage, which we effected, and had the whole convoy in before dark; at half past six in the evening we anchored in 15 fathoms water, soft ground, being a mixture of sand and black mud:  we moored with the bower anchors, and had the church of St. Francisco south 73 deg.. 00’. west, the easternmost point in sight, called Point Roquet, (from a small rock which lies a little detached from it) north 78 deg.. 00’. east, and a fort to the south-west of the town, south 45 deg.. 00’. west, distant from the nearest shore about two and a half cables length.  The ground all over this bay is said to be foul; we therefore buoyed up our cables, but had no reason, upon examining them afterwards, to believe there was any foul ground where we lay.