Wednesday, 3. Nearly the whole party were employed in different labours connected with the boat, which is now almost completed: but we have not as yet been able to obtain tar from our kiln, a circumstance that will occasion us not a little embarrassment. Having been told by the Indians that on leaving the falls we should soon pass the buffaloe country, we have before us the prospect of fasting occasionally; but in order to provide a supply we sent out the hunters who killed only a buffaloe and two antelopes, which added to six beaver and two otter have been all our game for two or three days. At ten in the morning we had a light shower which scarcely wet the grass.

Thursday, July 4th. The boat was now completed except what is in fact the most difficult part, the making her seams secure. We had intended to despatch a canoe with part of our men to the United States early this spring; but not having yet seen the Snake Indians, or knowing whether to calculate on their friendship or enmity, we have decided not to weaken our party which is already scarcely sufficient to repel any hostility. We were afraid too that such a measure might dishearten those who remain; and as we have never suggested it to them, they are all perfectly and enthusiastically attached to the enterprise, and willing to encounter any danger to ensure its success. We had a heavy dew this morning.

Since our arrival at the falls we have repeatedly heard a strange noise coming from the mountains in a direction a little to the north of west. It is heard at different periods of the day and night, sometimes when the air is perfectly still and without a cloud, and consists of one stroke only, or of five or six discharges in quick succession. It is loud and resembles precisely the sound of a six pound piece of ordnance at the distance of three miles. The Minnetarees frequently mentioned this noise like thunder, which they said the mountains made; but we had paid no attention to it, believing it to have been some superstition or perhaps a falsehood. The watermen also of the party say that the Pawnees and Ricaras give the same account of a noise heard in the Black mountains to the westward of them. The solution of the mystery given by the philosophy of the watermen is, that it is occasioned by the bursting of the rich mines of silver confined within the bosom of the mountain. An elk and a beaver are all that were killed to-day: the buffaloe seemed to have withdrawn from our neighbourhood, though several of the men who went to-day to visit the falls for the first time, mention that they are still abundant at that place. We contrived however to spread not a very sumptuous but a comfortable table in honour of the day, and in the evening gave the men a drink of spirits, which was the last of our stock. Some of them appeared sensible to the effects of even so small a quantity, and as is usual among them on all festivals, the fiddle was produced and a dance begun, which lasted till nine o'clock, when it was interrupted by a heavy shower of rain. They continued however their merriment till a late hour.

Friday 5. The boat was brought up into a high situation and fires kindled under her in order to dry her more expeditiously. Despairing now of procuring any tar, we formed a composition of pounded charcoal with beeswax and buffaloe tallow to supply its place; should this resource fail us it will be very unfortunate, as in every other respect the boat answers our purposes completely. Although not quite dry she can be carried with ease by five men; her form is as complete as could be wished; very strong, and will carry at least eight thousand pounds with her complement of hands. Besides our want of tar, we have been unlucky in sewing the skins with a needle which had sharp edges instead of a point merely, although a large thong was used in order to fill the hole, yet it shrinks in drying and leaves the hole open, so that we fear the boat will leak.

A large herd of buffaloe came near us and we procured three of them: besides which were killed two wolves and three antelopes. In the course of the day other herds of buffaloe came near our camp on their way down the river: these herds move with great method and regularity. Although ten or twelve herds are seen scattered from each other over a space of many miles, yet if they are undisturbed by pursuit they will be uniformly travelling in the same direction.

Saturday 6. Last night there were several showers of rain and hail, attended with thunder and lightning: and about day break a heavy storm came on from the southwest with one continued roar of thunder, and rain and hail. The hail which was as large as musket balls, covered the ground completely; and on collecting some of it, it lasted during the day and served to cool the water. The red and yellow currant is abundant and now ripe, although still a little acid. We have seen in this neighbourhood what we have not met before, a remarkably small fox which associates in bands and burrows in the prairie, like the small wolf, but have not yet been able to obtain any of them, as they are extremely vigilant, and betake themselves on the slightest alarm to their burrows which are very deep.

Sunday 7. The weather is warm but cloudy, so that the moisture retained by the bark after the rain leaves it slowly, though we have small fires constantly under the boat. We have no tents, and therefore are obliged to use the sails to keep off the bad weather. Our buffaloe skins too, are scarcely sufficient to cover our baggage, but the men are now dressing others to replace their present leather clothing, which soon rots by being so constantly exposed to water. In the evening the hunters returned with the skins of only three buffaloe, two antelope, four deer, and three wolf skins, and reported that the buffaloe had gone further down the river; two other hunters who left us this morning could find nothing except one elk: in addition to this we caught a beaver. The musquitoes still disturb us very much, and the blowing-flies swarm in vast numbers round the boat. At four in the afternoon we had a light shower of rain attended with some thunder and lightning.

Monday 8. In order more fully to replace the notes of the river which he had lost, and which he was prevented from supplying by the storm of the twenty-ninth ult. captain Clarke set out after breakfast, taking with him nearly the whole party with a view of shooting buffaloe if there should be any near the falls. After getting some distance in the plains the men were divided into squads, and he with two others struck the Missouri at the entrance of Medicine river, and thence proceeded down to the great cataract. He found that the immense herds of buffaloe have entirely disappeared, and he thought had gone below the falls. Having made the necessary measurements, he returned through the plains and reached camp late in the evening; the whole party had killed only three buffaloe, three antelopes and a deer; they had also shot a small fox, and brought a living ground-squirrel somewhat larger than those of the United States.

The day was warm and fair, but a slight rain fell in the afternoon. The boat having now become sufficiently dry, we gave it a coat of the composition, which after a proper interval was repeated, and the next morning,

Tuesday 9, she was launched into the water, and swam perfectly well: the seats were then fixed and the oars fitted; but after we had loaded her, as well as the canoes, and were on the point of setting out a violent wind caused the waves to wet the baggage, so that we were forced to unload them. The wind continued high till evening, when to our great disappointment we discovered that nearly all the composition had separated from the skins, and left the seams perfectly exposed; so that the boat now leaked very much. To repair this misfortune without pitch is impossible, and as none of that article is to be procured, we therefore, however reluctantly, are obliged to abandon her, after having had so much labour in the construction. We now saw that the section of the boat covered with buffaloe skins on which hair had been left, answered better than the elk skins and leaked but little; while that part which was covered hair about one eighth of an inch, retained the composition perfectly, and remained sound and dry. From this we perceived that had we employed buffaloe instead of elk skins, and not singed them so closely as we have done, carefully avoiding to cut the leather in sewing, the boat would have been sufficient even with the present composition, or had we singed instead of shaving the elk skins we might have succeeded. But we discovered our error too late: the buffaloe had deserted us, the travelling season was so fast advancing that we had no time to spare for experiments, and therefore finding that she could be no longer useful she was sunk in the water, so as to soften the skins and enable us the more easily to take her to pieces. It now became necessary to provide other means for transporting the baggage which we had intended to stow in her. For this purpose we shall want two canoes, but for many miles below the mouth of the Muscleshell river to this place, we have not seen a single tree fit to be used in that way. The hunters however who had hitherto been sent after timber, mention that there is a low ground on the opposite side of the river, about eight miles above us by land, and more than twice that distance by water, in which we may probably find trees large enough for our purposes. Captain Clarke therefore determined to set out by land for that place with ten of the best workmen who would be occupied in building the canoes till the rest of the party, after taking the boat to pieces and making the necessary deposits, should transport the baggage and join them with the other six canoes.