And the music, too, seemed to be for ever varying, for the choral odes which were sweetly chanted to the ear were not perpetually continuous, and at times, owing to some change in the direction of the wind as it swirled around the gorge, the choral element was subordinated to the deep thunder of the Rajah Fall, or the vague tumult of startling discords which arose at intervals from the semi-cavernous walls of the pool into which plunge the waters of the Rajah and Roarer Falls. And then these sounds would gradually lose their predominance, and the more uniform sounds in which all the four falls joined would once more fill the air and charm the ear. And thus the attention could never be lulled to sleep, for here monotony was not, and the mind was always kept in an attitude of expectancy for the variations in the music which were sure to come, and, so far as they reached the ear, were never the same combinations of sounds that had been heard before. All the elements of melody were here, indeed, in profuse abundance, and it seemed as if they only required to be caught by some master hand and strung into methodical musical combinations to yield to the mind and feelings those exquisite sensations which music alone can in any effective degree convey. And besides the effects we have noticed, there is the motion of colour constantly, though gradually, shifting and altering, for, as the sun declines, the rainbow hues move steadily upwards on the face of the falls, and the colours of the rocks, which are of varying shades of purple and yellow, continually alter in character with the sinking day. But the finest combined effects of beauty and grandeur are, perhaps, most fully felt when, late in the afternoon, the eye wanders delighted over the vast combination of lofty cliffs and falling waters to rest finally far above on the iris tints of the Rajah and Roarer Falls, through the colours of which myriads of swallows incessantly wheel on lightsome wing, mingled with the quick, darting movement of the Alpine swifts, and the gentle flight of the blue rock pigeons, which occasionally wing their way through the mazy throng. For there the eye is ever delighted with the charm of colour and of those endless variations of graceful movement which continuously convey pleasurable sensations to the mind. But how could eye or ear ever tire of those rare combinations of form, colour, motion and rhythmic sounds which fill the mind with an exalted sense of feeling and of pleasure, and the conscious heart with exquisite sensations far beyond the power of language to describe? Presently my companion returned and aroused me from my state of dreamy pleasure, and I turned reluctantly away from the scene as the rainbow colours were, with the sinking sun, beginning to disappear from the topmost heights of the falls.