August 6.—Started at eight. River seventy yards broad, nine feet deep, pebbly bottom; current three miles per hour. We find in some places, where hills come down to the river, as much as thirty feet of depth. There are some quite high hills on the right-hand side, that might be called mountains; they run north and south. I was surprised that we saw no animals all day, but only river birds—such as black ducks, cormorants, and king-fishers; also many parrots of various kinds and brilliant plumage, but they always kept out of shot. We camped at half-past five, tired and low-spirited, having had nothing to eat all day but a little rice boiled with cheese early in the morning. My wrists were sore and painful from sun-burn, and the sand-flies were very troublesome. Heavy clouds, with thunder and lightning, in the N. W. In the night, fresh breeze from that quarter. We heard tigers and monkeys during the night, and saw the tiger-tracks near the camp next morning.

August 6.—Soon after starting we saw a fine doe coming down towards the river. We steered in, and got within about eighty yards of her, when Ijurra and I fired together, the guns loaded with a couple of rifle-balls each. The animal stood quite still for a few minutes, and then walked slowly off towards the bushes. I gave my gun, loaded with three rifle-balls, to the puntero, who got a close shot, but without effect. One of the balls, a little flattened, was picked up close to where the deer stood. These circumstances made the Indians doubt if she were a deer; and I judge, from their gestures and exclamations, that they thought it was some evil spirit that was ball-proof. I imagine that the ball was flattened either by passing through the branch of a brush or striking some particularly hard bone of the animal, or it might have been jammed in the gun by the other balls.

These Indians have very keen senses, and see and hear things that are inaudible and invisible to us. Our canoe-men this morning commenced paddling with great vigor. I asked the cause, and they said that they heard monkeys ahead. I think we must have paddled a mile before I heard the sound they spoke of. When we came up to them, we found a gang of large red monkeys in some tall trees on the river-side, making a noise like the grunting of a herd of enraged hogs. We landed, and in a few minutes I found myself beating my way through the thick undergrowth, and hunting monkeys with as much excitement as I had ever hunted squirrels when a boy. I had no balls with me, and my No. 3 shot only served to sting them from their elevated position in the tops of the trees, and bring them within reach of the pucunas of the Indians. They got two and I one, after firing about a dozen shots into him. I never saw animals so tenacious of life; this one was, as the Indians expressed it, bathed in shot, (bañado en municion.) These monkeys were about the size of a common terrier-dog, and were clad with a long, soft, maroon-colored hair; they are called cotomonos, from a large goitre (coto) under the jaw. This is an apparatus of thin bone in the wind-pipe, by means of which they make their peculiar noise. The male, called curaca, (which is also the appellation of the chief of a tribe of Indians,) has a long red beard. They are called guariba in Brazil, where they are said to be black as well as red; and I believe they are of the species commonly called howling monkeys.

It is scarcely worth while to say that the Indians use parts of this animal for the cure of diseases, for I know no substance that could possibly be used as a remedial agent that they do not use for that purpose. The mother carries the young upon her back until it is able to go alone. If the dam dies, the sire takes charge. There are vast numbers in all the course of the river, and no day passes to the traveller that they are not heard or seen.

When I arrived at the beach with my game, I found that the Indians had made a fire and were roasting theirs. They did not take the trouble to skin and clean the animal, but simply put him in the fire, and, when well scorched, took him off and cut pieces from the fleshy parts with a knife; if these were not sufficiently well done, they roasted them farther on little stakes stuck up before the fire. I tried to eat a piece, but it was so tough that my teeth would make no impression upon it. The one I killed was enciente; the fœtus about double the size of a wharf-rat. I wished to preserve it, but it was too large for any bottles I had; whereupon the Indians roasted and ate it without ceremony.

We also saw to-day several river hogs, and had an animated chase after one, which we encountered on the river-side, immediately opposite a nearly precipitous bank of loose earth, which crumbled under his feet so that he could not climb it. He hesitated to take the water in face of the canoes, so that we thought we had him; but after a little play up and down the river-side, he broke his way through the line of his adversaries, capsizing two Indians as he went, and took to the water. This animal is amphibious, about the size of a half-grown hog, and reminded me, in his appearance and movements, of the rhinoceros. He is also red, and I thought it remarkable that the only animals we had seen—the deer, the monkeys, and the hog—should be all of this color. It is called ronsoco here, and capiuara in Brazil. In these Brazilian names I follow the spelling of Baeña.

We also heard the barking of dogs on the right or Infidel side of the river, in contradistinction to the other, which is called La parte de la cristiandad, supposed to be the dogs of the Cashibos Indians of the Pachitea.

Parrots and other birds were also more numerous than before.

We found the river to-day much choked with islands, shoals, and grounded drift-wood; camped at half-past five, and supped upon monkey soup. The monkey, as it regards toughness, was monkey still; but the liver, of which I ate nearly the whole, was tender and good. Jocko, however, had his revenge, for I nearly perished of nightmare. Some devil, with arms as nervous as the monkey's, had me by the throat, and, staring on me with his cold, cruel eye, expressed his determination to hold on to the death. I thought it hard to die by the grasp of this fiend on the banks of the strange river, and so early in my course; and upon making a desperate effort, and shaking him off, I found that I had forgotten to take off my cravat, which was choking me within an inch of my life.

August 7.—We got off at half-past eight; at a quarter to ten passed the port of Uchiza. This is a village nine miles from the river. The port itself, like that of Tingo Maria, is a shed for the accommodation of canoes and passengers. Nearly all the towns on the river are built six or eight miles from the banks, on account of the overflow of the country when the river is full. Some hill on the bank is generally selected as the port, and a road is made thence to the town. This hill is sometimes forty feet out of water, and sometimes covered, and the whole land between it and the town overflowed. At a quarter past ten we passed the Quebrada, or ravine of Huinagua, on the right. A small stream comes down this ravine, the water of which is salt. The people of Uchiza ascend it—a day's journey—to a salt hill, where they supply themselves with this indispensable article. At twenty minutes past eleven we passed another; and at 1 p. m. another, where the people of Tocache get their salt. It is a day's journey from Tocache to the mouth of the Quebrada, and another to the salt hills.