When the point of observation is high enough, and the spray-cloud spreads out extensively enough, it is possible to see two concentric, complete Rainbows at one time. In fact, one does often see a portion of the arc of such a second bow; but three complete concentric bows, or three arcs of bows, are never seen at Niagara, nor anywhere else. George William Curtis, in "Lotus Eating," records,-- "There [at the Cave of the Winds], at sunset, and there only, you may see three circular rainbows, one within another,"-- He does not say, "complete circles"; he doubtless meant "arcs." He does not say he saw them; so in the absence of a more definite statement, it was certainly merely hearsay to which he referred. John R. Barlow, who has been a guide at the Cave of the Winds for over thirty years, says that on numerous occasions during that period he has seen two complete circular Rainbows at one time, at that point. He observed it twice, and only twice, in 1905. In 1872, Professor Tyndall, with Barlow as his guide, made an exhaustive study of the Goat Island ends of the American and Horse-Shoe Falls. As he was gazing at a complete Rainbow circle, Barlow told him that he had sometimes seen two complete concentric bows at one time. "That is possible," replied Tyndall. "And I have heard people say they have seen three such bows; though I myself have never seen the third," said Barlow. "Because it is an impossibility," answered Tyndall. "The second bow is merely the reflexion of the first. A third bow would be a shadow of a shadow; and no one can see that." Had this Legend of Healing been found recorded in any of the early chronicles, it would have been the earliest known reference to Niagara in its relation to Medicine; and would have associated the Cataract therewith long, long before the advent of the white man. But, alas! it is not so found; and no trace of it can be met with, until a very recent date. It has so much the appearance of a made-to-order story, such a specially-prepared-to-fit-the-locality aspect, it savors so strongly of an attempt to make the early Indian Mythology conform to the Christian story of the "Bow of Promise," that its Aboriginal authenticity may well be doubted. FIRST WHITE VISITOR We do not know, and we never shall know, the name of the first white man who gazed upon the Cataract of Niagara; that marvelous spot, the scenic wonder of the World, that glory of Nature, which has been referred to as "The Emblem of God's Majesty on Earth,"--where, in the words of Father Hennepin, in 1697,-- "Betwixt the lakes Erie and Ontario, is a great and prodigious cadence of water, which falls down after a surprising and astonishing manner; insomuch that the Universe itself does not afford its parallel."