A crescent-shaped island—Urania Island—1,000 m. in length, with most wonderful vegetation upon it, was now on our left. That region was extraordinarily rich in rubber. The channel which we had followed was strewn all over with rocks. Another island, 400 m. long—Caterina Island—followed. The current in the Arinos-Juruena River had a speed of 80 m. a minute. The river in places where no islands lay had a width of 200 m. The water was most beautifully clear, of a lovely emerald green, with a wonderful white sand bottom clearly visible although the river had considerable depth in many places. Yet another island, 600 m. long—Una Island—came in sight to the right of us; then another between two companions, forming almost a circle round the central isle. The river now formed a basin not less than 800 m. wide with innumerable rocks at the entrance. We went on kilometre after kilometre, spending our time in avoiding unpleasant rocks, when again we came first to fairly strong rapids, then to an extremely dangerous rapid, which we shot, as we were carried away into it before we had time to realize where we were. We had the greatest difficulty in extricating ourselves from the many terrifying whirlpools at the end of the rapid, in a great basin 900 m. wide. We found a most beautiful halting place on a natural terrace of volcanic rock some 20 ft. above the river, with a dome of rock in the centre.
I met signs of Indians close to the river. Evidently a tribe had once halted there, but apparently many years before our arrival. I discovered their fireplaces, several carved pieces of wood, and some fragments of rudimentary pottery in the neighbourhood of this picturesque spot. In exploring round the place I also found some almost entirely obliterated indications of several ancient trails which had been made by the Indians in the forest.
Looking toward bearings magnetic 340°, and also in the opposite direction to the south, most gorgeous river scenes were before us. This was by far the most beautiful spot I had come across on the river so far. I therefore named the huge island on which I stood George Rex Island. I gave Alcides orders to carve the name on a tree, but as he was an anarchist he refused to do it, excusing himself by saying that he had injured his hand.
At that camp we caught over 400 lb. of fish in less than half an hour—three jahus among the number, each weighing over 40 lb. Then we also captured two cachorra or dog fish, which possessed vicious-looking molars of great length, not unlike those of a big dog. Each of these fish weighed over 30 lb. Then we got eight trahiras, some 20 lb. each in weight. With the little salt which remained we preserved some of the fish, as we were now getting very short of food. However, we had excellent meals most of the time on the river, frying the fish with fat which we extracted from the fish itself.
During the night of July 26th we had a minimum temperature of 55° F., but as we had had plenty to eat the previous evening—in fact, too much—we did not feel the cold quite so severely.
Ariranhas in large families were plentiful near that spot, and came close several times, grinding their teeth at us, especially when we were slaughtering the fish on the bank. We kept watch during the entire night, as on that occasion they were truly vicious. Our dogs, for a change, became quite sportive. One of them, named Negrino, got furious with the ariranhas, and, driven mad by their unmusical noises, actually jumped into the stream to go to their attack. In a moment he had quantities of ariranhas upon him, and was bitten savagely, one ear being nearly torn off. He endeavoured to beat a retreat, but by that time he was in mid-stream and struggling for dear life against his enemies. We put out in the canoe at once and went to his rescue, eventually getting him on board in an exhausted condition, and bleeding terribly all over.
We enjoyed a hearty breakfast of boiled and fried fish before leaving camp at 9 o'clock in the morning. We were sorry to leave the beautiful camp—the best we had had since we had been on the River Arinos. There were before us two great channels. The one flowing east was the larger of the two, fully 400 m. wide and 3,000 m. long in a straight line. As we were paddling along we passed on our left a triangular island the southern side of which was 2,000 m. long, the south-east side 500 m.—Angela Island.
Where the river deviated to 30° b.m. a perfectly straight stretch of 8,000 m. was before us—a most beautiful sight. Two parallel islands, only 50 m. wide, one 400 m. the other 300 m. long, were on the right of us, in the part of the river where George Rex Island, which was still to the right of us, described a graceful semicircle. Fifteen hundred metres farther down George Rex Island came to an end with a beautiful spit of sand 200 m. long. Just beyond, still on our right, another island, 400 m. long—Rosalinda Island—was passed, also with a lovely spit of sand 200 m. in extent. The river at this place had a total width of 500 m. At a point 5,000 m. down the straight stretch due east we came to three parallel elongated islands, two of them 300 m. long, the third 1,000 m. in length, all three on the right of us as we floated down. A barrier of rocks extended right across the stream from north-west to south-east, at a spot where on our left side, at b.m. 330°, a hill range extended northwards. With a slight deviation of 10° eastward (40° b.m.) another beautiful stretch of 6,000 m. was before us. More islands, more clusters of picturesque rocks were passed. First came a group of two islands, the larger 350 m. long—Vanessa Island; then a beautiful clean sand-spit 150 m. long, almost in mid-stream, preceded a group of three parallel islands—Philomela Island, 400 m. long, Portia Island, 300 m. and Psyche Island, 4,500 m. Beyond these were two more islands, one triangular in shape in the centre of the stream—Rhea Island—some 250 m. long, with a strong corrideira at its north-easterly terminus.
A Giant Sucurí Snake with Entire Deer contained in its Digestive Organs.