Rollo did not understand this at first, and accordingly, when he first saw these rafts coming with a dense crowd of men at each end, rowing vigorously, while there was not a single oar to be seen, nor even any place for an oar along the sides, he was very much surprised at the spectacle. He thought that the men at the back end of the raft were sculling; but what those at the forward end were doing he could not imagine. When, however, he came to consider the case, he saw what the explanation must be, and so he understood the subject perfectly. At length, when Rollo saw that the forward end of the raft, in its progress down the river, had come nearly opposite to the place where he was standing, he got into the boat, and the boatman rowed him out to the raft. As soon as they reached the raft Rollo stepped out upon the boards and logs. The top of the raft made a very good and smooth floor, being covered with boards, and it was high and dry above the water. Rollo looked down into the interstices, and saw that that part of the raft which was under water was formed of logs and timbers of very large size, placed close together side by side, with a layer above crossing the layer below. The whole was then covered with a flooring of boards, so close and continuous that Rollo had to look for some time before he could find any openings where he could look down and see how the raft was constructed. In the middle of the raft were several houses. The houses were made of boards, and were of the plainest and simplest construction. Around the doors of these houses several women were sitting wherever they could find shady places. Some were knitting and some were sewing. There were several children there too, amusing themselves in various ways. One was skipping a rope. Rudolf conducted Rollo up to one of these families, and told the women that he was an American boy, who was travelling with his uncle on the Rhine, and seeing this raft going by, had a curiosity to come on board of it. The women looked very much pleased when they heard this. Some of them had friends in America, and others were thinking of going themselves with their husbands; and they immediately began to talk very volubly to Rollo, and to ask him questions. But as they spoke German, Rollo could not understand what they said. In the mean time the waiter had gone away to speak to the captain of the raft, and to make arrangements for having Rollo put ashore when he had sailed long enough upon it. The captain was walking to and fro, upon a raised platform, near the middle of the raft. This platform I will describe presently. In a few minutes the man returned.