mouth of the river; and Charlevoix takes his reader to the summit of Cape Diamond to see the “porpoises, white as snow,” sporting on the surface of the harbor of Quebec. And Boucher says in 1664, “from there (Tadoussac) to Montreal is found a great quantity of _Marsouins blancs_.” Several whales have been taken pretty high up the river since I was there. P. A. Gosse, in his “Canadian Naturalist,” p. 171 (London, 1840), speaks of “the white dolphin of the St. Lawrence (_Delphinus Canadensis_),” as considered different from those of the sea. “The Natural History Society of Montreal offered a prize, a few years ago, for an essay on the _Cetacea_ of the St. Lawrence, which was, I believe, handed in.” In Champlain’s day it was commonly called “the Great River of Canada.” More than one nation has claimed it. In Ogilby’s “America of 1670,” in the map _Novi Belgii_, it is called “De Groote Rivier van Niew Nederlandt.” It bears different names in different parts of its course, as it flows through what were formerly the territories of different nations. From the Gulf to Lake Ontario it is called at present the St. Lawrence; from Montreal to the same place it is frequently called the Cateraqui; and higher up it is known successively as the Niagara, Detroit, St. Clair, St. Mary’s, and St. Louis rivers. Humboldt, speaking of the Orinoco, says that this name is unknown in the interior of the country; so likewise the tribes that dwell about the sources of the St. Lawrence have never heard the name which it bears in the lower part of its course. It rises near another father of waters,—the Mississippi,—issuing from a remarkable spring far up in the woods, called Lake Superior, fifteen hundred miles in circumference; and several other springs there are thereabouts which feed it. It makes such a noise in its tumbling down at one place as is heard all round the world. Bouchette, the Surveyor-General of the Canadas, calls it “the most splendid river on the globe”; says that it is two thousand statute miles long (more recent geographers make it four or five hundred miles longer); that at the Rivière du Sud it is eleven miles wide; at the Traverse, thirteen; at the Paps of Matane, twenty-five; at the Seven Islands, seventy-three; and at its mouth, from Cape Rosier to the Mingan Settlements in Labrador, near one hundred and five (?) miles wide. According to Captain Bayfield’s recent chart it is about _ninety-six_ geographical miles wide at the latter place, measuring at right angles with the stream. It has much the largest estuary, regarding both length and breadth, of any river on the globe. Humboldt says that the river Plate, which has the broadest estuary of the South American rivers, is ninety-two geographical miles wide at its mouth; also he found the Orinoco to be more than three miles wide at five hundred and sixty miles from its mouth; but he does not tell us that ships of six hundred tons can sail up it so far, as they can up the St. Lawrence to Montreal,—an