The Ona bows are made of native wood worked into shape with shell knives where civilized knives are not to be had, but so many prospectors have been killed by them in recent years, that the tribe is fairly well supplied with cutlery. Then, too, barrels drift ashore from Cape Horn ships, and the iron hoops are made into knives. The ships also supply materials for tips for the Ona arrows in the shape of whiskey bottles. Very fine points are made from glass by the Ona artisans. The arrows are made of a kind of reed, and are so light as to be well-nigh useless when fired against the wind. Very little is known of the Ona language, save that it is as harsh as the Yahgan is liquid. Their religious beliefs, too, are unknown. When in distress, as when captured by the whites, the old cut long and deep slashes in the chest with any sharp thing at hand; but when once they find themselves well treated they become bright and cheerful and affectionate, and rarely evince a disposition to leave their captors. From what is said of these captives (who are in all cases held, as said, practically as slaves, in that they receive only food and clothes for their labor), it is plain that the Ona is an aggressive warrior toward the whites only because of ill-treatment. When the Rev. Bridges and the Right Rev. Sterling once made a journey across the island they had not one bit of trouble. They did not kill anybody, did not have any cause for firing a gun, or making either an aggressive or defensive movement. Damnable ill-treatment on the part of the whites is at the bottom of all the Ona aggressiveness--and Ona suffering. The only effort that has been made to alleviate the sufferings of the Onas at the hands of the whites was the establishing of a Catholic mission near San Sebastian Bay. When I was there no success had been attained by the mission. On the contrary, a priest, who had gone with a guide to seek for the Onas, had failed to return, and when a party of sailors from the nearby sub-prefectura went to look for the two, they found their heads only. The Onas have been made to suffer so much that they will not now trust any one. When prospectors have disappeared only their bones have usually been found, and these were always marked either with fire or human teeth. The Onas eat the whites they capture, hoping thereby to obtain the white man's valor. In their fierce fight for their homes, the Onas have an advantage in the fact that the dividing line between the Argentine's and Chili's shares of the island runs through the heart of their country. Each white nation is very much opposed to allowing the other to invade its territory with an armed force, and so the efforts of the sailors and soldiers of either side must end near the line, if not on it. So pursuit of the Onas is always ineffectual. Nevertheless, the shepherd will drive them into a corner at last by extending his wire fences, and then extermination will come.