It was no mere spirit of adventure, or dream of limitless empire, that dispersed the French settlements over so wide an area. As Virginia was founded on tobacco, so was Canada on furs; and unless the Indians on the northern lakes could be induced to bring their furs down the St. Lawrence, Quebec might add luster to the crown of Louis, but it could not greatly increase the commercial strength of France. A firm alliance with the northern tribes was therefore the first object. It was for this that military posts were established on the waterways of the interior. And every stockaded fort was at once a trading camp and a mission house: merchants lured the Indian with brandy and firearms; civil officials and men at arms impressed him with the authority of the great king; Jesuit priests, strangely compounding true devotion and unscrupulous intrigue, learned the native languages, and with the magic of the crucifix and the _Te Deum_ converted the spirit-fearing savages into loyal children of the Bishop of Rome. Canada, with its center at Quebec, and its outposts at Michilimackinac and Sault Ste. Marie, was little more than "a musket, a rosary, and a pack of beaver skins": not so much a colony, indeed, as a mesh of interlacing interests cunningly designed to convert fur into gold. And so long as the tribes of the northern lakes annually brought their rich freightage of mink and beaver to Fort Frontenac or Montreal, to be exchanged there for arms and brandy, beads, hatchets, bracelets, and gay-colored fabrics, gold was not lacking--for the pockets of clever merchant and corrupt official, if not always for the royal treasury of France.