The whole panorama of the world's life before the historic period, seemed to be born over again, and mine was the only human heart that beat in this unpeopled world! There were no more seasons; there were no more climates; the natural heat of the world increased unceasingly, and neutralized that of the great radiant Sun. Vegetation was exaggerated in an extraordinary manner. I passed like a shadow in the midst of brushwood as lofty as the giant trees of California, and trod underfoot the moist and humid soil, reeking with a rank and varied vegetation. I leaned against the huge column-like trunks of giant trees, to which those of Canada were as ferns. Whole ages passed, hundreds upon hundreds of years were concentrated into a single day. Next, unrolled before me like a panorama, came the