There is only one other that shall be described, although there are many mentioned with more or less particularity in the diaries of these travels. And this last one is of the character of the first and not at all of the second and third, for it was on the grand scale, filling all the heavens, a phenomenon, one is convinced, of an order distinct and different from the local, near-at-hand kind. There was exceptionally good opportunity for observing this display, since it occurred during an all-night journey, the night of the 6th of April, 1912, with brilliant starlight but no moon while we were hastening to reach Eagle for Easter. We had made a new traverse from the Tanana to the Yukon, through two hundred miles of uninhabited country, and had missed the head of the creek that would have taken us to the latter river in thirty miles, dropping into one that meandered for upward of a hundred before it discharged into the great river. It was one o'clock on Good Friday morning when we reached a road-house on the Yukon eighty miles from Eagle. The only chance to keep the appointment was to travel all the two remaining nights. So we cached almost all our load at the road-house, for we should retrace our steps when Eagle was visited, and thus were able to travel fast. Both nights were marked by fine auroral displays, so extensive and of such apparent height as to give the impression that they must be visible over large areas of the earth. Both continued all night long and were of the same general description, but the second night's display was emphasised in its main features and elaborated in its detail, and was the more striking and notable and worthy of description. It began by an exquisite and delicate weaving of fine, fluorescent filaments of light in and out among the stars, until at times a perfect network was formed, like lace amidst diamonds, first in one quarter of the heavens, then in another, then stretching and weaving its web right across the sky. The Yukon runs roughly north and south in these reaches, and the general trend of the whole display was parallel with the river's course. For an hour or more the ceaseless extension and looping of these infinitely elastic threads of light went on, with constant variation in their brilliance but no change in their form and never an instant's cessation of motion. [Illustration: Photo by Paul Schultz. THE SUN DOGS.] [Illustration: "TAN," OF MIXED BREED.] [Illustration: "MUK," A PURE MALAMUTE.]