But the Jakut himself is no less hardened against the cold than his faithful horse. “On December 9,” says Wrangell, “we bivouacked round a fire, at a temperature of -28°, on an open pasture-ground, which afforded no shelter against the northern blast. Here I had an excellent opportunity for admiring the unparalleled powers of endurance of our Jakut attendants. On the longest winter journey they take neither tents nor extra covering along with them, not even one of the larger fur-dresses. While travelling, the Jakut contents himself with his usual dress; in this he generally sleeps in the open air; a horse rug stretched out upon the snow is his bed, a wooden saddle his pillow. With the same fur jacket, which serves him by daytime as a dress, and which he pulls off when he lies down for the night, he decks his back and shoulders, while the front part of his body is turned towards the fire almost without any covering. He then stops his nose and ears with small pieces of skin, and covers his face so as to leave but a small opening for breathing--these are all the precautions he takes against the severest cold. Even in Siberia the Jakuts are called ‘men of iron.’ Often have I seen them sleeping at a temperature of -4° in the open air, near an extinguished bivouac fire, and with a thick ice-rind covering their almost unprotected body.” Most of the Jakuts have an incredible sharpness of vision. One of them told Lieutenant Anjou, pointing to the planet Jupiter, that he had often seen yonder blue star devour a smaller one, and then after a time cast it out again.[13] Their local memory is no less astonishing; a pool of water, a large stone, a solitary bush imprints itself deeply into their remembrance, and guides them after a lapse of years through the boundless wilderness. In manual dexterity they surpass all other Siberian nations, and some of their articles, such as their poniards and their leather, might figure with credit in any European exhibition. Long before the Russian conquest they made use of the iron ore on the Wilui to manufacture their own knives and axes, which, either from the excellence of the material or of the workmanship, rarely break, even in the severest cold--a perfection which the best Sheffield ware does not attain. Since time immemorial they have been acquainted with the art of striking fire with flint and steel, an invention unknown even to the ancient Greeks and Romans. Their leather is perfectly water-tight, and the women make carpets of white and colored skins, which are even exported to Europe. It is almost superfluous to mention that a people so capable of bearing hardships, so sharp-witted, and so eager for gain as the Jakuts must needs pursue the fur-bearing animals with which their forests abound with untiring zeal and a wonderful dexterity.