According as an Indian nation proved friendly or unfriendly, the whites used it for their own advantage. Originally the slaves consisted almost entirely of captives taken in war, for there was but little trade among the different nations and tribes until articles of commerce were given by the whites in return for furs and slaves. How the traffic in slaves was affected is seen in the case of the Choctaw and the Chickasaw, the former friends of the French, the latter, of the English. The ill feeling of the two nations was nourished by the international rivalry of their white allies to whom the Indians disposed of many of their captive slaves.[48] The Spaniards of Mexico made slave raids and induced the Indians to do so. La Salle’s expedition, found abundant evidence in 1687 of Spanish trade among the Cenis Indians, in their possession of pieces of money, silver spoons, lace, clothes and a bull from Rome exempting the Spaniards in Mexico from fasting during the summer.[49] Some messengers of the Chouman among the Cenis, and the Cenis themselves, told the French of the slave raids and of the cruel treatment of the Indians by the Spaniards to the southward.[50] Even the Jesuits were not averse to stirring up tribe against tribe. So strong was their interest in the Huron that, for the advancement of the Jesuit cause, it was felt advisable to break up the Iroquois power. Even La Salle advised such a course of action, and urged that the French strengthen the southern Indians by supplying them with firearms and in other ways, so that they might be enabled to defeat the Iroquois, destroy their organization, and carry off their women and children as slaves.[51] On the other hand, since the Huron were the friends of the French and had been largely converted by the French missionaries, the Jesuits sought to better the lot of the Huron slaves held by the Iroquois,[52] and sent an earnest appeal to the Christians in France to contribute funds for the redemption of the Christian captives.[53] Hennepin’s _Narrative_ tells of an attempt made by the Jesuits in 1681 to free some Ottawa Indians who were slaves among the Iroquois, by gifts of wampum belts, and by telling the Iroquois that these Ottawa were the children of the governor of the French, and that by holding them they were making war on the French.[54]