It was Sunday. I had climbed three or four thousand feet up the side of a mountain and below me lay the wonder of the valley, dotted with patches of trees and carpeted with the beauty of rich, green grass, mountain-violets and forget-me-nots, wild asters, and hyacinths. On three sides of me spread out the wonderful panorama of the Canadian Rockies, softened in the golden sunshine of late June. From up and down the valley, from the breaks between the peaks, and from the little gullies cleft in shale and rock that crept up to the snow-lines came a soft and droning murmur. It was the music of running water--music ever in the air of summer, for the rivers and creeks and tiny streamlets gushing down from the melting snow up near the clouds are never still. Sweet perfumes as well as music came to me; June and July--the last of spring and the first of summer in the northern mountains--were commingling. All the earth was bursting with green; flowers were turning the sunny slopes and meadows into colored splashes of red and white and purple, and everything that had life was giving voice to exultation--the fat whistlers on their rocks, the pompous little gophers on their mounds, the squirrel-like rock-rabbits, the big bumblebees that buzzed from flower to flower, the hawks in the valley, and the eagles over the peaks. Earth, it seemed, was at peace. And I, looking over all that vastness of life, felt my own greatness thrust upon me. For had not the Creator, of all things, made this wonderland for _me_? There could be no denial. I was master--master because I could think, because I could reason, because I held the reins to an unutterable power of destruction. And then the vastness of time seized upon me like a living thing. Yesterday, a thing had happened which came strongly into my thoughts of to-day. Under a great overhanging cliff I had found a part of a monster bone, as heavy as iron--a section of a gigantic vertebra. Two years before I had found part of the skeleton of a prehistoric creature, identical with this, and, from photographs which I took of it the scientific departments of the University of Michigan and the government at Ottawa agreed that the bones were part of the skeleton of a mammoth whale that once had swum where the valleys and peaks of the Rocky Mountains now disrupt the continent.