And, at daybreak the next morning, I set off with Mr. Roe and Mr. Cunningham for my companions: when we left the cutter the flood was just making, so that we had the advantage of the whole of the tide, which lasted until noon, when we landed, and observed the latitude to be 12 degrees 38 minutes 47 seconds. Our situation was within three miles of a hill bearing South 25 1/2 degrees West, the bearing of which having previously been taken from the cutter's present anchorage, enabled me to decide with tolerable accuracy upon the station we had reached. This river, as far as we had examined it, a distance of thirty-six miles, differed from the other only in being of larger size. At the place where the latitude was observed, it was about one hundred and fifty yards wide. From the anchorage the channel deepened from five to eight fathoms, and this depth continued tolerably even and regular for nine miles. It then began to decrease; and, at the furthest part we reached the depth at high water was two and a half fathoms. The banks, which were in most parts thickly lined with mangroves, and in no part more than three feet above high-water mark, are formed of soft mud, which rendered landing, except at high water, impossible. The country on all sides presented a low level plain, the monotony of which was occasionally relieved by a few wooded hills, and some groups of trees, among which the palm-tree was conspicuous, and tended in a trifling degree to improve the view, which, to say the best of it, was unvaried and heavy. The low land, at least that part over which the fires had not passed, Was covered with a thickly matted broom-grass; and, where it was burnt off, the soil was observed to be composed of a hard and stiff clay, the surface of which bore the appearance of having been frequently inundated, either by high tides, or, more probably, by freshes in the rainy season. We saw very few birds, and those were chiefly cockatoos; but alligators were as numerous as in the other river, whence the name of Alligator Rivers were bestowed upon them. The water where we landed was fresh enough to be nearly drinkable, and probably would be quite sweet at half ebb. May 8. The ebb-tide did not serve to carry us on board, and the boat's crew were so fatigued by having been pulling all day, that we were obliged to drop the grapnel within seven miles of the cutter to await the turn of tide, so that it was not until midnight that we reached the vessel much exhausted. May 9. The next day we left our anchorage, and took up a station within Field Island, intending, if possible, to go through the passage between Barron and Field Islands. At low water the banks dried for a considerable extent. May 10.