This island is nine leagues from N. to S. and two from E. to W. It extends from lat. 27° 35' to 28° both S. and is in long. 49° 45' W. from London.[4] Although of considerable height, it is scarcely discernible at the distance of ten leagues, being obscured under the continent of Brazil, the mountains of which are exceedingly high; but on a nearer approach is easily distinguished, and may be readily known by having a number of small islands at each end.[5] Frezier has given a draught of the island of St Catharines and the neighbouring coast, with the smaller adjacent isles; but has, by mistake, called the island of Alvoredo St Gal; whereas the true island of St Gal is seven or eight miles northward of Alvoredo, and much smaller. He has also called an island to the southward of St Catharines Alvoredo, and has omitted the island of Masaquara. In other respects his plan is sufficiently exact. The best entrance to the harbour is between the N.E. point of the island of St Catharines and the island of Alvoredo, where ships may pass under the guidance of the lead, without the least apprehensions of danger. The north entrance is about five miles broad, the distance from thence to the island of St Antonio is eight miles, and the coarse to that island is S.S.W. 1/2 W. About the middle of the island the harbour is contracted to a narrow channel by two points of land, not more than a quarter of a mile separate, and at this time a battery was erecting on the point on the island side to defend this passage. This seemed, however, a very useless work, as this channel had only two fathoms water, and is consequently only navigable for barks and boats, wherefore an enemy could have no inducement to attempt this passage, more especially as the northern one is so broad and safe that no squadron can be prevented from coming in by any fortifications whatever, when the sea-breeze makes. The brigadier Don Jose Sylva de Paz, who is governor of this settlement, has a different opinion; for, besides the above-mentioned battery, there were three other forts carrying on for the defence of the harbour, none of which were completed when we were there. The first of these, called St Joam, was building on a point of the island of St Catharines, near Parrot Island. The second, in form of a half-moon, was on the island of St Antonio; and the third, which seemed the chief, and had some appearance of a regular fortification, is on an island near the continent, where the governor resides. Don Jose Sylva de Paz was esteemed an expert engineer; and he doubtless understood one branch of his business very well, which is the advantages which new works bring to those who have charge of their erection. [Footnote 4: This account of the matter is very erroneous. The latitudes are between 28° 5' and 28° 30' both S. and the longitude is 49° 10' W. from Greenwich.--E.]