In some instances the herd is driven along a deep narrow valley with steep sides, and as there is no means of escape, the animals are killed by hunters extended in line at the narrowest part of the defile. Bows are made either of wood or antlers of the deer, and as a rule the wooden weapon is made stronger and more pliable by the addition of a strong strip of sinew, which is bound firmly to the wooden portion. The bowstring is manufactured from sinew; and the arrow tips, formerly cleverly made by flaking pieces of slate, are now replaced by sharpened scraps of tin or iron riveted into a slit at the pointed end of the shaft, to the other extremity of which a few feathers of the owl are fastened in order to give a true flight. A large quiver of seal skin is divided into compartments containing the arrows, the bow, and a number of spare arrow tips. A handle of ivory serves as a means of carrying the quiver when the hunter is travelling, but as soon as game is in sight, the quiver is slung over the left shoulder. [Illustration: ESKIMO TOOLS, WEAPONS, ETC. 1. Pick of wood and ivory; 2. Adze of bone and iron; 3. Antler club; 4. Gaff for salmon; 5. Snow-knife of bone; 6, 7, 8, 9. Arrow heads of antler; No. 9 is pointed with stone; 10. Arrow straightener of bone; 11. Hide scraper of bone and iron; 12 Carving on ivory depicting a whale hunt; 13. Tobacco pipe of ivory.] Eskimo dogs are eager in the pursuit of herds of the musk ox, which always defends itself by forming a circle around the calves. While the oxen are busy keeping a number of ferocious dogs at bay, the hunters approach and let fly their arrows into the herd. Sometimes an infuriated animal breaks from the defensive ring, and at such times the Eskimo is saved by his dogs, who harass the creatures until the hunter is again prepared to shoot. Polar bears are pursued by hunters on light sledges, and when the quarry is exhausted by the chase, the traces of the most reliable dogs are cut, and very soon the bear is standing at bay, striking fiercely at the dogs with his huge forepaws, until the hunter is able to come up and launch a spear or arrow. The best season for bear hunting is March or April, when the bears come a considerable distance inland in pursuit of young seals. In the region of Davis Strait, the Eskimo diligently search for holes where the bear is having his long winter sleep, from which the hunter intends that he shall never be awakened. [Illustration: ESKIMO DOGS’ ATTACK ON A BEAR.]