150 Mackenzie’s Voyages and cons, he had to think out his plans, and then by persuasion to induce his followers to continue with him. It is remarkable that the world owes some of its most important advances out of “‘chaos and old night” to the persistence of an idea, held often by an obscure individual, cherished in loneliness, and pursued unflinchingly in the face of indifference, ridicule and active opposition, to ultimate success. No other circumstance in life suggests so con- vincingly the possibility of inspiration from sources not dreamt of in everyday philosophy. Pursuing his inquiries he ascertained that, some distance above, a river fell in from the west which was navigable for small canoes four days from its mouth, and from thence, the Indians said, they slept but two nights to get to the people with whom they traded. The coast-dwellers had wooden canoes of a very large size in which they went down a river one day’s journey to the sea. Having secured one of his informants to guide him overland, Mackenzie then called his own people together, and put the situation before them. “*I declared my resolution not to attempt it, unless they would engage, if we could not after all proceed overland, to return with me, and continue our voyage to the discharge of the waters whatever the distance might be.”” And he further assured them in the most solemn manner, that even if he had to make the attempt alone, he would not abandon his design of reaching the sea. His people, one and all, eagerly expressed themselves as being ready now as ever to follow where he should lead, and preparations were immediately made to return upstream to the river that falls in from the west. Mr. Mackay, by Mackenzie’s directions, engraved the explorer’s name and the date of the year on a tree at the southernmost point of their