The tide then began to ebb at the rate of three miles per hour, and continued with nearly that velocity during the whole tide.

During the evening our preparations were completed.
May 8.
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.