sky. This vapour was in violent and almost living motion. It was thick in extension, but thin in texture; some parts, however, were far denser than others, as the particles were crushed together or swept apart by the motion. The green sparks from the brook, when closely watched, could be distinguished individually, each one wavering up toward the clouds, but the moment they got within them a fearful struggle seemed to begin. The spark endeavoured to escape through to the upper air, while the clouds concentrated
