In an hour the jam had grown enormously. For a hundred rods up the rapid the channel was full of lumber, "churning" and battering itself. The mass had swayed off to the west bank and was piling up against the ledges on the opposite side. The mighty pressure of the torrent kept rolling the logs, one over the other, till the top of the pile was in places thirty or forty feet out of the water. The bottom logs were wedged into the bed of the stream. The flood, thus dammed and held back, rose higher and higher, rushing through and among the mass with a strange hollow roar which changed the note of the fall. Where it hung in the throat of the pitch, the mass kept rising and falling with the peculiar rhythmic motion of the water. We expected each moment to see it break out and go down; but the tough spruce logs held. By noon, all the crew had come up. The jam filled the whole river for a third of a mile back from the fall, so completely that during the afternoon the west bank gangs crossed on it to the east side. We lighted our fires on the ledges; and as the evening advanced it was a picturesque sight--a hundred and fifty red-shirted drivers camping there and sitting in messes about their coarse fare. All the next day we worked with the warps. Nooses were dropped over the upright ends of the logs at the foot of the jam, and the whole gang was set to pull on them. Later in the day, a heavy capstan was rigged. The hawsers broke like twine. It was impossible to start a log, so tremendous was the weight of water and lumber combined. Next day, the jam was mined with powder placed in water-tight molasses-casks and connected with fire at the top of the ledges by means of tarred fuses. The blasts blew out splinters freely, but failed to break or dislodge the large sticks. Villate fumed and sweated. Unless the drive went down to market, not a dollar would be paid to one of us; so he declared. "If you want your pay, break the jam," was his constant exhortation, enforced by vigorous curses; and, indeed, we had been hired on these terms; wages to be paid when the drive reached Montreal--not before. This is a common rule, or used to be; the men have thus a strong interest in the driving.