As we stumbled along we could not even lean against the trees to have a little rest, as most of them had thousands of horizontal thorns of great length sticking out all around them. Innumerable thorns were upon the ground. Our feet were full of them. I looked all the time where I was putting my feet, but sometimes the thorns were hidden under masses of dried foliage, and they were so long and so strong that they went clean through the sides of my shoes.

The last blow came to me that evening, when my men informed me that we had no food whatever left. All that remained of our three months' provisions were six tins of sardines and one tin of anchovies. That was all. My men made no secret of having thrown away everything as we came along. The sugar, for which they had a perfect craving, they had eaten, consuming in the last two days the entire supply of 30 lb., which had remained until then. It was then that I understood the cause of the internal inflammation from which they all suffered. They were greatly excited, and demanded the balance of their money, not wishing to come on any more; they wanted to fall back on the River Tapajoz and go home. There was a riot. They threatened to shoot me if I insisted on their coming on.

Just then a big black monkey appeared upon a tree, inquisitively watching our doings. The man X shot it. A moment later a big jaho was brought down, also by the man X, who was the best shot of the party. My men were never too ill to eat. They immediately proceeded to skin the poor monkey and pluck the feathers from the bird, in order to prepare a hearty meal. But they complained that they had no feijão, and no coffee after their dinner. When we started a few days before we had a supply of 40 lb. of coffee.

Feasting on the meat did not seem to be a good remedy for internal inflammation and fever. The next morning my men were really in a precarious condition. I saw that it was out of the question for them to continue. Personally, I would certainly not go back. I came to an understanding with them that I would leave sufficient ammunition for them to shoot with, as there seemed to be plenty of game in that particular part of the forest. We would divide equally what provisions we had—that is to say, three tins of sardines for each party. I would also give them sufficient money for one of them, or two, to fall back on the river and purchase provisions for the entire party. I made them promise that they should remain in charge of my baggage, most of which I would leave with them at that spot, while I, with two men, would go right across the forest as far as the Madeira River, where I would endeavour to get fresh men and new provisions.

The men agreed to this. As I could not trust any of them, I took the precaution to take along with me all my notebooks and the maps I had made of the entire region we had crossed, four hundred glass negatives which I had taken and developed, a number of unexposed plates, a small camera, my chronometer, one aneroid, a sextant, a prismatic compass, one other compass, and a number of other things which were absolutely necessary. The rest of the baggage I left at that spot. I begged the men to take special care of the packages. All I asked of them was to prop them up on stones so that the termites and ants should not destroy my possessions, and to make a shed with palm leaves so as to protect the packages as much as possible from the rain. The men promised to do all this faithfully. We drew lots as to who were to be the two to accompany me on the difficult errand across the virgin forest. Fate selected Filippe the negro and Benedicto, both terribly ill.

We had no idea whatever what the distance would be between that point and the Madeira River. It might take us a few days to get there; it might take us some months. All the provisions we of the advance party should have to depend upon were the three tins of sardines and the tin of anchovies—the latter had remained in our possession when we tossed up as to which of the two parties should have it. The Indian Miguel was induced at the last moment to come also, and with him came the carrier his friend.

Early on September 2nd I was ready to start, and roused poor Filippe and Benedicto, who were in a shocking state. Without a word of farewell from the men we left behind, and for whom we were about to sacrifice our lives perhaps, we started on our dangerous mission. The Indian Miguel and myself walked in front, cutting the way all the time, while I held my compass in hand so as to keep the correct direction west. Considering all, we marched fairly well.

It was curious to note how difficult it was for men to travel in a straight line while cutting a way through the forest. I noticed that the Indian, when cutting his way through, using the knife in his right hand, would gradually veer to the right, so that if you let him go long enough he would describe a regular circle and come back to his original starting-point. If he cut the way with the left hand, the tendency would be to keep to the left all the time until he had described a circle that way. That was not characteristic of that man only, but of nearly all the men I met in Brazil when making a picada. It was therefore necessary to keep constant watch with the compass so that the deviation should be as small as possible during the march.

We had gone but a short distance from camp when we came to a streamlet of the most delicious water. I had suffered a great deal from thirst the day before. We had been so poisoned by the yellow water of the stream that I did not like to try more experiments at the marsh where my men insisted on making camp. So that now I really enjoyed a good drink of the limpid water. That day we found too much water. On going 1 kil. farther, about 4 kil. from camp, we found another wider and equally delicious streamlet, 2 m. wide. All the streams we met flowed in a northerly direction.

We walked and walked the entire day, until 6 p.m., covering a distance of 26 kil. The Indian Miguel worried me the whole day, saying that cutting the picada was heavy work and he could not go on, as his finger was hurting him, and the pay he received—£1 sterling a day—was too small for the work he had to do. I had to keep constant watch on him, as he was a man of a slippery nature, and I did not know what he might do from one moment to another. Also he said we were simply committing suicide by trying to go through the virgin forest, as we should meet thousands of Indians who would attack us, and we had no chance of escape. I needed this man and his companion to carry my sextant and the unexposed photographic plates, some two hundred of them, which were of considerable weight.