The growling plainsmen, knowing that he was right and understanding his position, reluctantly kept their trigger fingers extended and finally lowered their pieces, hoping that the Indians would lose their heads and do some overt act; but the Indians were not fools, whatever else they might have been. With eager alertness on one side and sullen acquiescence on the other the wooding was finished, ropes cast off and the _Missouri Belle_ pushed quickly out into the stream, her grim faced defenders manning the stern decks and praying for an excuse to open fire. No sooner had a reasonable distance been opened between the boat and the bank than the Indians, at a signal from their leader, leaped behind the woodpile and opened fire on the boat with muskets and bows and arrows, the latter weapons far more accurate than the miserable trade guns which a few of the braves carried. With them dropping an arrow is an instinct and they have developed it to a degree that is remarkable, to say the least; while with the smooth-bore trade guns, with varying charges of trade powder and sizes of balls, they were poor shots at any distance. Instantly two score rifles replied from the boat, pouring their leaden hail into the stacked wood, but without any noticeable result; and before a second round could be fired the distance had been increased to such an extent that only one or two excitable tenderfeet tried a second shot. The chief result of the incident was the breaking of the monotony of the trip and the starting of chains of reminiscences among the hunters and trappers to which the tenderfeet listened with eager ears. After this flurry of excitement interest slowly swung far astern, where the American Fur Company's boat was supposed to be breasting the current on her long voyage to Fort Union and beyond, and many eyes were on the lookout for a glimpse of her smoke. A sight of the boat itself, except at close range, was almost hopeless because the bends in the river were so numerous and close together that the stream seemed like a narrow lake. The surface of the water was becoming different from what it had been, for the great masses of floating debris had thinned and no longer came down in raft-like formations. This was due to the rapid falling of the water, which had stranded more and more of the bulkier drift and piled it up at the head of every island, emerging bar and jutting point. At the height of the freshets, especially the April rise, often the logs and trees came down so thick and solid that they resembled floating islands. This was in large measure due to the simultaneous floating of the vast accumulations piled up all along the banks, and it aroused disgust and anxiety in the hearts of the boatmen, who feared for hulls and paddle wheels.