In the steep cliffs bordering these valleys there are some large caves, which no doubt were originally formed by the waves: one of these is celebrated under the name of Cueva del Obispo; having formerly been consecrated.

During the day I felt very unwell, and from that time till the end of October did not recover.
SEPTEMBER 22, 1834.
We continued to pass over green plains without a tree.

The next day we arrived at a house near Navedad, on the sea-coast, where a rich Haciendero gave us lodgings.

I stayed here the two ensuing days, and although very unwell, managed to collect from the tertiary formation some marine shells.
SEPTEMBER 24, 1834.
Our course was now directed towards Valparaiso, which with great difficulty I reached on the 27th, and was there confined to my bed till the end of October.

During this time I was an inmate in Mr.
Corfield's house, whose kindness to me I do not know how to express.
I will here add a few observations on some of the animals and birds of Chile.