These droughts to a certain degree seem to be almost periodical; I was told the dates of several others, and the intervals were about fifteen years.) OCTOBER 12, 1833.
I had intended to push my excursion farther, but not being quite well, I was compelled to return by a balandra, or one-masted vessel of about a hundred tons' burden, which was bound to Buenos Ayres.
As the weather was not fair, we moored early in the day to a branch of a tree on one of the islands.

The Parana is full of islands, which undergo a constant round of decay and renovation.

In the memory of the master several large ones had disappeared, and others again had been formed and protected by vegetation.

They are composed of muddy sand, without even the smallest pebble, and were then about four feet above the level of the river; but during the periodical floods they are inundated.

They all present one character; numerous willows and a few other trees are bound together by a great variety of creeping plants, thus forming a thick jungle.