“As the bark at the two ends of the boat cannot be put so close together as to keep out the water, the crevices are stopped up with the crushed or pounded bark of the red elm, which in that state looks like oakum. Some pieces of bark are put on the ribs of the boat, without which the foot would easily pierce the thin and weak bottom. The side of the bark which runs next the wood thus becomes the outside of the boat, because it is smooth and slippery, and cuts the water with less difficulty than the other. “The building of these boats is not always quick; for sometimes it happens that after peeling the bark off an elm, and carefully examining it, it is found pierced with holes and slits, or is too thin to venture one’s life in. That which we made was big enough to bear four persons, with our baggage, which weighed somewhat more than a man. “All possible precautions must be taken in rowing on rivers with bark canoes; for when rowing fast, a broken branch under water would carry half the boat away. To get into it also requires great care, for the heels may very easily pierce through the bottom.” [Illustration] VIADUCT ON THE BALTIMORE AND WASHINGTON RAIL-ROAD. * * * * * The Patuxent, which is leaped over so lightly at this place by the arches of the Viaduct, becomes, ere long, a stream which is not only respectable in size, but most respectable in story. It will ever be associated with the name and fame of the gallant Barney, who, though his exertions could not prevent ultimate defeat, did much to sustain his country’s honour, and has made his own imperishable.