The colours and beauty of Niagara in sunlight are indescribable. You may convey _some_ idea of its form, power, and majesty, by describing lines and giving figures of quantity and proportion, but to give the faintest impression of its beauty and colours is almost hopeless. The rich, lovely green on the very brink of the Horse Shoe Fall is beyond conception. All the emeralds in the world, clustered together and bathed in sunlight, would fall far short of the beauty and brilliancy of that pure and dazzling colour. It can only be compared to an immense, unknown brilliant of the emerald hue, in a stupendous setting of the purest frosted, yet sparkling silver. Here, too, is to be seen the marvellous beauty of the prismatic colours almost daily. Here you might think the "Covenant" had been made, and set up to shine for ever and ever at the Throne of the Most Mighty, and here only can be seen the complete _circle_ of the colours of the rainbow. I saw this but once, when on board the _Maid of the Mist_, and almost within the great vortex at the foot of the Falls. A brilliant sun shining through the spray all round, placed us in a moment as it were in the very centre of that beautiful circle of colour, which, with the thunder of the cataract, and the sublimity of the scene, made the soul feel as if it were in the presence of the "Great Spirit," and this the sign and seal of an eternal compact. Here, also, is to be seen the softer, but not the less beautiful Lunar Rainbow. Whenever the moon is high enough in the heavens, the lunar bow can be seen, not fitful as elsewhere, but constant and beautiful as long as the moon is shedding her soft light upon the spray. On one occasion I saw two lunar bows at once, one on the spray from the American Fall, and the other on the spray of the great Horse Shoe Fall. This I believe is not usual, but an eddy of the wind brought the two clouds of spray under the moon's rays. Yet these are not all the "beauties of the mist." One morning at sunrise I saw one of the most beautiful forms the spray could possibly assume. The night had been unusually calm, the morning was as still as it could be, and the mist from the Horse Shoe had risen in a straight column to a height of at least 300 feet, and then spread out into a mass of huge rolling clouds, immediately above the cataracts. The rising sun shed a red lustre on the under edges of the cloud, which was truly wonderful. It more resembled one huge, solitary column supporting a canopy of silvery grey cloud, the edges of which were like burnished copper, and highly suggestive of the Temple of the Most High, where man must bow down and worship the great Creator of all these wondrous works. It is not in a passing glance at Niagara that all its marvellous beauties can be seen. You must stay there long enough to see it in all its aspects--in sunshine and in moonlight, in daylight and in darkness, in storm and in calm. No picture of language can possibly convey a just