It is impossible to form a correct idea of the width of the St. Lawrence at the head of the river. The islands are so large and numerous, it is difficult to come to a conclusion whether you are on a river or on a lake. Many of these islands are thickly wooded, so that they look more like the mainland on each side of you as the steamer glides down "mid channel" between them. The various and brilliant tints of the foliage of the trees of America in autumn are gorgeous, such as never can be seen in this country; and their "chromotones" present an insurmountable difficulty to a photographer with his double achromatic lens and camera. Imagine our oaks clothed with leaves possessing all the varieties of red tints, from brilliant carmine down to burnt sienna--the brightest copper bays that grow in England are cool in tone compared with them; fancy our beeches, birches, and ashes thick with leaves of a bright yellow colour, from gamboge down to yellow ochre; our pines, firs, larches, and spruces, carrying all the varieties of green, from emerald down to terra verte; in fact, all the tints that are, can be seen on the trees when they are going into "the sere and yellow leaf" of autumn, excepting _blue_, and even that is supplied by the bluebirds (Sialia wilsonii) flitting about among the leaves, and in the deep cool tint of the sky, repeated and blended with the reflection of the many-coloured trees in the calm, still water of the river. Some of the trees--the maples, for instance--exhibit in themselves, most vividly, the brightest shades of red, green, and yellow; but when the wind blows these resplendent colours about, the atmosphere is like a mammoth kaleidoscope that is never allowed to rest long enough to present to the eye a symmetrical figure or pattern, a perfect chaos of the most vivid and brilliant colours too gorgeous to depict. Long before this we had got clear of the islands at the foot of the lake and head of the river, and were steaming swiftly down the broad St. Lawrence. It is difficult to say how broad, but it varied from three to five or six miles in width; indeed, the river very much resembles the Balloch End, which is the broadest of Lochlomond; and some of the passages between the islands are very similar to the straits between the "Pass of Balmaha" and the island of Inchcailliach. The river is not hemmed in with such mountains as Ben Lomond and Ben Dhu, but, in many respects, the St. Lawrence very much resembles parts of our widest lakes, Lochlomond and Windermere. Having enjoyed the sight of the bright, beautiful scenery and the fresh morning air for a couple of hours, we were summoned to breakfast by the sound of the steward's "Big Ben." Descending to the lower cabin, we seated ourselves at the breakfast table, and partook of a most hearty meal. All the meals on board these steamers are served in the most sumptuous style. During the repast some talked politics, some dollars and cents, others were speculating on how we should get down the Rapids, and when we should make them. Among the latter was myself, for I had seen rapids which I had not the slightest desire to be in or on; and, what sort of rapids we were coming to was of some importance to all who had not been on them. But everybody seemed anxious to be "on deck," and again "look out" for the quickening of the stream, or when the first "white lippers," should give indication of their whereabouts. My fellow passengers were from all parts of the Union; the Yankee "guessed," the Southerner "reckoned," and the Western man "calculated" we should soon be among the "jumpers." Each one every now and then strained his eyes "ahead," down stream, to see if he could descry "broken water." At last an old river-man sung out, "There they are." There are the Longue Sault Rapids, the first we reach. Having plenty of "daylight," we did not feel much anxiety as we neared them, which we quickly did, for "the stream runs fast." We were soon among the jumping waters, and it is somewhat difficult to describe the sensation, somewhat difficult to find a comparison of a suitable character. It is not like being at sea in a ship in a "dead calm." The vessel does not "roll" with such solemn dignity, nor does she "pitch" and rise again so buoyantly as an Atlantic steamer (strange enough, I once crossed the Atlantic in the steamship _Niagara_), as she ploughs her way westward or eastward in a "head wind," and through a head sea. She rather kicks and jerks, and is let "down a peg" or two, with a shake and a fling. Did you ever ride a spavined horse down a hill? If so, you can form some idea of the manner in which we were let down the Longue Sault and Cedar Rapids and the St. Louis Cascades.