On account of its large size, work on the dugout progressed slowly; a section of the trunk, some thirty feet long, had been cut off where the tree had fallen, and this was being hollowed out with adzes, while short-handled axes were used in dressing down the exterior. After twelve days of continuous hewing the dugout began to assume the appearance of a seaworthy craft, and we figured that she would be ready to launch at the end of another two weeks; but the next day a batelão arrived. Her captain had been fighting his way up the Gy-Paraná over three months in his efforts to reach Barão de Melgaço, having been sent from the Madeira by order of Colonel Rondon.
We loaded our meagre outfit into the batelão, which was a good-sized craft built of boards nailed over heavy wooden ribs, and with a squared tree-trunk for a keel; an arched palm-leaf roof covered a section in the centre, under which we sat to avoid the rain or sun. This style of boat is in general use on the larger tropical rivers and corresponds with the falca of the Orinoco and the champan of the Magdalena. A crew of eighteen men was mustered, all of whom were more than willing to leave their pestilential environs, and we were soon shooting down-stream with the rapid current. Captain Amilcar had gone on ahead with the small canoes in order to survey the river. They carried a sighting-rod with red disks and a telemeter for measuring distances; a compass gave them the direction.
A quarter of an hour after starting we reached the camp of the telegraphic commission and made a short stop to take aboard a number of men who were suffering with fever and beri-beri; shattered wrecks of humanity whose only hope of life lay in flight. I saw a number of the camaradas who had come across Matto Grosso with us, and it was surprising to note the great change which only two weeks in the steaming, insect-infested forest had wrought; several of them were already suffering from violent attacks of malaria, and their faces were colorless and sallow; others who had been in the region longer stared at the batelão with sunken, lustreless eyes in which not even a vestige of interest in our visit or of hope was evident; a few had apparently reached the stage where the sight of the twelve newly made mounds on the hilltop no longer aroused feelings of dread or apprehension, but rather of indifference tempered with longing for a welcome release.
The Commemoração, the headwater branch of the Gy-Paraná, on which we were, is a deep river from three hundred to a thousand feet wide, with reddish water and a swift current. It was not necessary for the men to ply the oars except when rounding some sharp bend where steerage-way was required, and this was fortunate, as it rained so much of the time that the men were glad to seek the protection offered by the covered portion of the boat. In the intervals between the deluging showers the sun blazed down mercilessly; trees on both sides of the narrow lane of water sparkled as if bedecked with jewels. In places the forest rose from the river’s edge in sheer walls of variegated green; tree-trunks, brush, and palms united into one solid battlement by mosses, climbing lilies, and ensnaring creepers. Again, clumps of graceful ita-palms leaned far out over the water and then rose in a series of stately, feather-crowned columns. At frequent intervals we had glimpses of the animal life that lurked within the impenetrable barrier of the forest fastness. Monkeys were especially plentiful, and within an hour after starting we had seen four distinct species, representing as many families; there were files of black howlers, the males jet-black, while the females are of a straw-color, moving leisurely through the branches; troops of dainty squirrel-monkeys, with deep-chestnut backs, grayish heads, and white faces, scampered over the tops of the lower trees. Black spider-monkeys sat in the highest crotches and gazed down at us in stupid perplexity, and once we startled a family of woolly little night-monkeys of a grayish color, which had selected a thick clump of overhanging vegetation as their diurnal sleeping-place. Large flocks of blue-and-yellow macaws, flying two by two, crossed the river high overhead, doubtless on their way to some choice feeding-ground. Kingfishers sped away in front of the hurrying batelão, and from the depths of the woods came the muffled sound of an ivory-bill’s tapping on a hollow trunk.
That night we reached the junction of the rivers Commemoração and Pimentá Bueno, the latter a stream not less than a thousand yards wide, with a great volume of water. The river formed by the confluence of these two streams is known as the Gy-Paraná. We had covered a distance of eighty kilometres. In ascending, it had taken the batelão nineteen days to cover the same stretch of river that we had just descended in one day.
Of course, the surveying canoes could not travel at this rapid pace, so the two parties became separated. In the very beginning Captain Amilcar’s party had suffered an accident which came near ending fatally for several of the men in his canoe. Their work necessitated frequent halts, and to bring the dugouts to a stop while racing down-stream was no easy task; so they had adopted the method of driving them into the vegetation and then holding on to the branches while a sight was taken with the telemeter. On one of these occasions a bushmaster fully seven feet long was shaken from the overhanging brush and fell into the canoe; the panic-stricken crew leaped into the water. Captain Amilcar retained his presence of mind and shot the snake, but in the meantime several of the men had been swept down-stream and were on the verge of drowning before he could reach them; the geologist had gone to the bottom, but was rescued and revived with some difficulty; thereafter he travelled with us in the batelão.
There were numbers of small alligators in the river, not over four feet long, called jacaretinga; later on we had the cook prepare one, as they were said to be good to eat. The flesh was of a white color when cooked, and tender, but it possessed an objectionable muddy flavor, so that we could eat but little of it; however, the natives liked it.
The next day we covered a distance of one hundred and eight kilometres. The current in the Gy-Paraná is not so strong as in the Commemoração, but, the weather being fair, the men pulled at the oars steadily during the twelve hours’ travel, with only short periods for rest and refreshment. All meals were cooked aboard, on a fire built on a box of sand in the prow. Insects were not particularly troublesome, as we kept to the middle of the stream, which, receiving the water of numerous good-sized tributaries, was constantly growing wider. There were abundant signs of the close proximity of Indians on both sides of the river. We saw some palm-leaf lean-tos used for overnight stops, with the charred sticks of a camp-fire in front; where the water eddied slowly against a crumbling bank, bamboo stakes protruded above the muddy stream—remnants of an ancient fish-trap—and occasionally we passed a small cleared spot, now overgrown with rank weeds and second-growth sprouts, which marked the site of an old plantation.
Realizing the importance of obtaining the good-will of the wild folk of whose existence in the surrounding forest there was such abundant evidence, the Brazilian Government had erected a number of small bamboo and palm-leaf sheds various distances apart, near some of the more recently used trails that led from the water into the dark jungle. Under each rough shelter a bench, made of long poles laid across sticks driven into the ground, had been built. It was the custom of the officials in going up or down the river to stop at each of these stations and place beads, knives, and trinkets on the benches as a peace-offering to the Indians; but so reticent had been the latter that not one of the articles had hitherto been touched. Great was our surprise and joy to find that all the precious offerings had been removed, and that the Indians themselves had left a number of tokens of friendship in return. They were arrows six feet long, beautifully adorned with the bright-colored feathers of trogons, toucans, and other birds; parcels of Brazil nuts neatly done up in leaves; a few ears of maize, a feather head-dress, and a small pottery bowl. We collected all these treasures and left many more presents in exchange.
As we neared one of the last stations the sound of loud hallooing came from the forest on our right. We swung the great batelão toward the shore. We landed, but no sooner had we climbed to the top of the steep bank than we realized how cleverly had been arranged the plan by the Indians to effect a meeting with the mysterious strangers who were passing through their country. Following a wide path that led into the dense forest for a distance of twenty yards, we suddenly came upon a small, swift stream that sped through a dark tunnel-like opening under the dense canopy of leaves and branches. As we stared in blank amazement into the impenetrable tangle of vegetation on the other side of the stream, there emerged from the forest four nude, bronze figures, gesticulating wildly and chattering in a strange jargon which, of course, we could not understand; they were of good build, though inferior in physique to the Nhambiquaras we had seen on the chapadão, and not over five feet tall, with long, straight hair, and, remarkable though it is, the tangled hair of two of them was of a decided auburn color. Their bodies were plentifully besmeared with dark-bluish paint, applied in queer zigzag designs and giving a grotesque effect. No wilder scene can be imagined than the quartet of naked, trembling savages faintly outlined against the dim background of merging shadows and sombre green; somehow they seemed to fit into the picture and to complete the impression of primality conveyed by the vast wilderness of the Brazilian hinterland. Our captain held up bunches of bright-red beads and started to wade into the stream toward them, but they immediately withdrew into the thick cover, so he came back. A moment later they reappeared and again began talking and waving their arms; by signs we tried to induce them to come nearer and to assure them of our peaceful intentions. Finally, after a powwow with his companions, one of their number approached to the margin of the stream and held out his hands. He then pointed to one of our men and motioned for him to take off his clothes and come over with the presents, which was done; the Indian grabbed the trinkets from the native’s outstretched hands, gave him a violent push back, and fled to his companions. This was repeated a number of times. Then we refused to permit our man to go farther than the centre of the stream—the water was nearly up to his chin—and after lengthy entreaties the Indian waded out and met him half-way. We laid out an attractive assortment of beads, knives, hatchets, and bright-colored trinkets on our side of the river and, retreating ten or fifteen feet with extended arms, invited the Indians to come over. Slowly they came, apparently with many misgivings. We approached them in a friendly manner; they made no attempt to flee, but cast meaning glances behind them where, obviously, an armed force was concealed near by to protect them in the event that our actions aroused suspicion. The chief was an intelligent fellow; his first deed was to enact before our eyes a drama that we shall never forget. Assuming a rigid pose, he pointed straight in front of him with one hand, as if taking aim; then with a sudden “pong” he clutched at his breast and fell upon his knees, gradually sinking to the ground, where he lay moaning. We understood the accusation; one of his tribe had been shot to death by our people, probably a rubber-collector farther down the river; that was the reason why they had mistrusted us. We showed them how to use the machetes and hatchets, and they seemed delighted; but when we demonstrated the use of matches their joy knew no bounds; they yelped and danced, made weird grimaces, and tried to set the trees and bushes afire, like so many monkeys. Finally, upon our urgent invitation, the chief shouted a guttural command, and three more savages appeared instantly and joined the group, making seven in all; the late arrivals were also treated in a generous manner, and then we withdrew to our boat. Before leaving, however, we promised to return and bring more machetes and matches, which they seemed particularly to appreciate, and they in turn promised to have the bench in the palm-leaf shed heaped with bows and arrows and other things of their making, promises which were religiously kept on both sides.