Wagner & McGuigan's Lith. Phila.
ZAPARO. Hunting Costume.
Pl. 15.
Pr. Vernazzi del.
Wagner & McGuigan's Lith. Phila.
ZAPARO.
Pl. 16.
He found this point, by the barometer, to be about nine hundred and sixteen feet below Echaraté; thus giving the river a fall of a little more than five feet to the mile. He afterwards found that the mouth of the Ucayali, which is one thousand and forty miles down stream of the cascade, was, by the barometer, nine hundred and four feet below it; thus giving the river a fall of .87 of a foot per mile.
He says that if the navigation of the Ucayali is attempted, it would be well to make a port at this point, and open a road thence to the valley of Sta. Ana, in which Echaraté is situated, and which is exceedingly fertile, producing large quantities of Peruvian bark, with coca, and many other tropical productions.
M. Castelnau thinks that this last cascade is the first impassable barrier to the navigation of the Ucayali upwards; but he found many places below this where the river had but a depth of three feet, and many, though unimportant, rapids. Indeed, two hundred and seventy miles below this, he describes a strait, called the Vuelta del Diablo, as a dangerous passage, blocked up by heavy trunks of trees, against which the current dashes with great violence.