It was very sultry when we left Quebec, but about noon we struck much clearer and cooler air, and soon after ran into an immense wave or puff of fog that came drifting up the river and set all the fog-guns booming along shore. We were soon through it into clear, crisp space, with room enough for any eye to range in. On the south the shores of the great river appear low and uninteresting, but on the north they are bold and striking enough to make it up,—high, scarred, unpeopled mountain ranges the whole way. The points of interest to the eye in the broad expanse of water were the white porpoises that kept rolling, rolling in the distance, all day. They came up like the perimeter of a great wheel that turns slowly and then disappears. From mid-forenoon we could see far ahead an immense column of yellow smoke rising up and flattening out upon the sky and stretching away beyond the horizon. Its form was that of some aquatic plant that shoots a stem up through the water, and spreads its broad leaf upon the surface. This smoky lily-pad must have reached nearly to Maine. It proved to be in the Indian country in the mountains beyond the mouth of the Saguenay, and must have represented an immense destruction of forest timber. The steamer is two hours crossing the St. Lawrence from Rivière du Loup to Tadousac. The Saguenay pushes a broad sweep of dark blue water down into its mightier brother that is sharply defined from the deck of the steamer. The two rivers seem to touch, but not to blend, so proud and haughty is this chieftain from the north. On the mountains above Tadousac one could see banks of sand left by the ancient seas. Naked rock and sterile sand are all the Tadousacker has to make his garden of, so far as I observed. Indeed, there is no soil along the Saguenay until you get to Ha-ha Bay, and then there is not much, and poor quality at that. What the ancient fires did not burn the ancient seas have washed away. I overheard an English resident say to a Yankee tourist, “You will think you are approaching the end of the world up here.” It certainly did suggest something apocryphal or antemundane,—a segment of the moon or of a cleft asteroid, matter dead or wrecked. The world-builders must have had their foundry up in this neighborhood, and the bed of this river was doubtless the channel through which the molten granite flowed. Some mischief-loving god has let in the sea while things were yet red-hot, and there has been a time here. But the channel still seems filled with water from the mid-Atlantic, cold and blue-black, and in places between seven and eight thousand feet deep (one and a half miles). In fact, the enormous depth of the Saguenay is one of the wonders of physical geography. It is as great a marvel in its way as Niagara.