But when, according to his desire, we came to turn southward, having passed beyond the second great lake, our men began all to be uneasy, and said we were now out of our way for certain, for that we were going farther from home, and that we were indeed far enough off already.
But we had not marched above twelve days more, eight whereof were taken up in rounding the lake, and four more south-west, in order to make for the river Congo, but we were put to another full stop, by entering a country so desolate, so frightful, and so wild, that we knew not what to think or do; for, besides that it appeared as a terrible and boundless desert, having neither woods, trees, rivers, or inhabitants, so even the place where we were was desolate of inhabitants, nor had we any way to gather in a stock of provisions for the passing of this desert, as we did before at our entering the first, unless we had marched back four days to the place where we turned the head of the lake.
Well, notwithstanding this, we ventured; for, to men that had passed such wild places as we had done, nothing could seem too desperate to undertake. We ventured, I say, and the rather because we saw very high mountains in our way at a great distance, and we imagined, wherever there were mountains there would be springs and rivers; where rivers there would be trees and grass; where trees and grass there would be cattle; and where cattle, some kind of inhabitants. At last, in consequence of this speculative philosophy, we entered this waste, having a great heap of roots and plants for our bread, such as the Indians gave us, a very little flesh or salt, and but a little water.
We travelled two days towards those hills, and still they seemed as far off as they did at first, and it was the fifth day before we got to them; indeed, we travelled but softly, for it was excessively hot; and we were much about the very equinoctial line, we hardly knew whether to the south or the north of it.
As we had concluded, that where there were hills there would be springs, so it happened; but we were not only surprised, but really frighted, to find the first spring we came to, and which looked admirably clear and beautiful, to be salt as brine. It was a terrible disappointment to us, and put us under melancholy apprehensions at first; but the gunner, who was of a spirit never discouraged, told us we should not be disturbed at that, but be very thankful, for salt was a bait we stood in as much need of as anything, and there was no question but we should find fresh water as well as salt; and here our surgeon stepped in to encourage us, and told us that if we did not know he would show us a way how to make that salt water fresh, which indeed made us all more cheerful, though we wondered what he meant.
Meantime our men, without bidding, had been seeking about for other springs, and found several; but still they were all salt; from whence we concluded that there was a salt rock or mineral stone in those mountains, and perhaps they might be all of such a substance; but still I wondered by what witchcraft it was that our artist the surgeon would make this salt water turn fresh, and I longed to see the experiment, which was indeed a very odd one; but he went to work with as much assurance as if he had tried it on the very spot before.
He took two of our large mats and sewed them together, and they made a kind of a bag four feet broad, three feet and a half high, and about a foot and a half thick when it was full.
He caused us to fill this bag with dry sand and tread it down as close as we could, not to burst the mats. When thus the bag was full within a foot, he sought some other earth and filled up the rest with it, and still trod all in as hard as he could. When he had done, he made a hole in the upper earth about as broad as the crown of a large hat, or something bigger about, but not so deep, and bade a negro fill it with water, and still as it shrunk away to fill it again, and keep it full. The bag he had placed at first across two pieces of wood, about a foot from the ground; and under it he ordered some of our skins to be spread that would hold water. In about an hour, and not sooner, the water began to come dropping through the bottom of the bag, and, to our great surprise, was perfectly fresh and sweet, and this continued for several hours; but in the end the water began to be a little brackish. When we told him that, "Well, then," said he, "turn the sand out, and fill it again." Whether he did this by way of experiment from his own fancy, or whether he had seen it done before, I do not remember.
The next day we mounted the tops of the hills, where the prospect was indeed astonishing, for as far as the eye could look, south, or west, or northwest, there was nothing to be seen but a vast howling wilderness, with neither tree nor river, nor any green thing. The surface we found, as the part we passed the day before, had a kind of thick moss upon it, of a blackish dead colour, but nothing in it that looked like food, either for man or beast.
Had we been stored with provisions to have entered for ten or twenty days upon this wilderness, as we were formerly, and with fresh water, we had hearts good enough to have ventured, though we had been obliged to come back again, for if we went north we did not know but we might meet with the same; but we neither had provisions, neither were we in any place where it was possible to get them. We killed some wild ferine creatures at the foot of these hills; but, except two things, like to nothing that we ever saw before, we met with nothing that was fit to eat. These were creatures that seemed to be between the kind of a buffalo and a deer, but indeed resembled neither; for they had no horns, and had great legs like a cow, with a fine head, and the neck like a deer. We killed also, at several times, a tiger, two young lions, and a wolf; but, God be thanked, we were not so reduced as to eat carrion.