The howling of the guaribas had for some time ceased, but the rustling of leaves, with the occasional snapping of a twig, to which the Indian had directed the attention of his companions, told that the troop was travelling through the tree-tops, otherwise observing a profound silence.
Soon they appeared in sight, suddenly presenting themselves upon a tall tree that stood by the side of the igarápe, about a cable’s length from that occupied by our adventurers. For some minutes the branches of the tree were seen oscillating up and down, as each black guariba sprang into it: and this continued until not less than a hundred had found lodgement upon the limbs. As the leader of the band, who was evidently chief of the tribe, caught sight of the igarápe, he was seen to pause in an abrupt and ambiguous manner, at the same moment giving utterance to a cry, easily intelligible as a word of command. It had the effect of causing those immediately behind him to come to a halt, as also the others, as they sprang successively into the tree. There could be no question as to what had caused the halt. It was the igarápe crossing the track which the guaribas were going. With them the only question was, how they were to get over it.
At the point where the howlers had clustered together, the strait was narrower than elsewhere within sight. Between the branches, extending horizontally from the opposite sides of the igarápe, there was a clear space of about twenty feet; and to the spectators it appeared improbable that any animal without wings could leap from tree to tree. The monkeys, however, did not seem to be of this opinion, but were plainly contemplating the leap; and it was evident that some of them were only restrained from taking it by an authoritative command from their chief, which held them in check. For several minutes there was a profound silence among them, undisturbed until the stragglers had all arrived in the tree, and squatted on the branches.
It was now observed that among these last were several mothers, each carrying a child upon her back, or embraced between her bare arms; the youngster with face upturned, clinging, not with teeth and toe-nail, but with hands and tail, to the neck of its maternal parent. To these the attention of the whole tribe appeared to be directed; and it was evident that they were the sole cause of the difficulty,—the impedimenta that had interrupted the onward march of the troop.
There had been confusion, accompanied by some chattering, after first coming up; but a sign from the leader had put an end to all noise, and then succeeded the silence already mentioned. During its continuance the guariba chief slowly ascended the tree, until he had attained a position elevated above all his followers. Then squatting down, with his hams firmly planted upon a branch, his long tail carefully coiled around another, he commenced his harangue with as much ceremony as if he had been chairman of a Guild-Hall dinner. Perhaps there was quite as much sense and eloquence in his speech; at all events, there was more noise: for during the ten minutes taken up by it—it had the advantage of brevity—no other sound could have been heard over the Gapo within the circuit of a mile.
His address being ended, the chief, by a series of detached speeches, seemed to invite a reply from his followers, coaxing their assent, or daring them to contradiction. There appeared to be no dissent, not one voice. The chattering that responded to the speech was delivered in a tone that spoke unanimous compliance with the proposal—whatever it was—which their chief had offered to their consideration.
Then ensued another interval of silence, much shorter than before, and again interrupted by the leader of the troop. This time, however, his words were few and to the purpose. They were pronounced in a tone of command, that called for prompt obedience, which was yielded instantaneously and without protest.
One of the strongest of the guaribas ran out upon the limb overhanging the igarápe, and, stopping at its extremity, braced himself for the leap. In another instant it was made, and the monkey was seen rushing up into the tree on the other side of the igarápe. A comrade followed, placing his four hands in the same spot, his body in a similar attitude, and making the leap so exactly like the guariba that had preceded him, that it seemed the same monkey repeating the performance. Then went another, and another, so close following, that the creatures appeared more like the links of some colossal but quick-moving chain, pulled by supernatural power across the igarápe, than a series of individual and animated beings.