On August 28th we left that stream at eight o'clock. We were confronted by a succession of steep hills with vertical rocks of immense size, on the summit of which were great slabs also of rock, not unlike angular roofs of houses. It was most difficult, I confess, for my men to take the loads up and down those giant rocks, especially as there were many fallen trees among them and the rocks themselves were extremely slippery.
It would not do to repeat in these pages the language of my men as they scrambled up and rolled down the numerous rocks—falling so clumsily that they always managed to injure themselves more or less. I was sorry for my loads, especially the instruments, which got knocked about in a pitiful way.
We came across three distinct hill ranges of that type, over which we had to travel, the highest point being some 300 ft. above the level of the Tapajoz River. The last bit in particular of that hilly region was diabolically steep, with loose rocks which gave us no end of trouble. A beautiful little streamlet flowing east descended in cascades among those huge rocks. Eventually we reached the summit of the plateau, a huge flat expanse of dark red volcanic rock. My men were so tired that we had to camp on that elevation. Nothing but a few shrubs grew in the interstices of that great table of rock, which extended for several kilometres to the north. The barrier of rock, a spur of the great central plateau, was very interesting from a geological point of view.
On August 29th we again marched westward, cutting our way through the forest, and found two streamlets—one flowing south, the other north. Late in the afternoon we arrived at a spot where there was another great mass of rock, most troublesome for us. My men were discontented, saying that when they agreed to march through the forest they had not agreed to march over rocks—as if I had placed these there on purpose to annoy them. They were extremely morose. I knew by their manner that I had fresh trouble in store.
In the centre of that second immense table of rock I found a few pools of putrid rain-water in cavities. My men wanted to halt there, but I induced them to march along in hopes of finding a stream at the bottom of the tableland. Unluckily we went on and on until the evening and we found no more water at all. Only a torrential shower came upon us during the night, and we were able to fill our cups with water to quench our thirst. Men and baggage got soaked in that storm. The loads were much heavier to carry the next morning.
On August 30th, when I called the men in order to make a start, two of them were attacked severely by fever, their temperature being 103°. They seemed to be in agony, and had no strength left.
Mr. Julio Nery said that his duties called him back to his post, and he must return with the Indians under his charge. He accompanied me up to lunch-time, when we all together had a hearty meal. After lunch I gave Mr. Nery and his men ample provisions to return to the river Tapajoz, where the boat was awaiting them. Not only that, but I presented Mr. Nery with a handsome rifle and a watch, in remembrance of his politeness to me. In order that he might have a pleasant journey back I also gave him the few tins of delicacies which I had brought for myself, the only four tins of condensed milk I had been able to obtain in S. Manoel, and a few tins of sardines which had remained from my provisions I had taken over from England, and which he liked very much.
It was a great trial to me to see how my men wasted food all the time. When I examined the loads once more I found that nearly the entire supply of flour, farinha, rice, lard, and much of the tinned stuff had been thrown away. We had been marching four and a half days, and out of the three months' provisions we only had food enough left to last us a few days.
With my reduced party of my six original men, the Indian Miguel and his friend the carrier—eight altogether—I started once more in a westerly direction, opening a picada—that is to say, cutting our way through the forest.
We crossed two streamlets flowing north. After that we came upon a most troublesome patch of swampy land with high reeds in it, the leaves of which cut our hands like razors when we forced our way through them, struggling in mud and slush up to our knees, sometimes as high as our waists. A streamlet flowing north formed the marsh in that low place. The moment we had got out of the marsh the men threw themselves down and said they could go no farther. I pointed out to them that that spot was most unhealthy, and tried to persuade them to go some distance from that pestilential place. But they would not listen to reason, and there they would stay.