The great Reputation Monsieur _de la Sale_ had gain’d, and his mighty Projects, occasion’d a Jealousy in some and Envy in others. His own Countrymen thwarted his Designs; but he surmounted all those Obstacles and return’d into _Canada_, about the Year 1678, with the Chevalier _Tonty_, an _Italian_ Gentleman, a Person of Worth and that had serv’d, whom he gain’d to his Enterprize. He also pick’d up in the Country forty or fifty Persons fit for that Expedition, and among them were three Recolets, whom he carry’d over to try what might be done as to Christianity among the Savages; he was well acquainted with, and had a just Esteem for the Virtue, the Capacity and the Zeal of those good, religious Men, who alone first undertook the Mission into that new World, and who being seconded by others, have carry’d it on there, with so much Edification. [Sidenote: _Source of the_ Missisipi.] [Sidenote: Islinois _River_.] Monsieur _de la Sale_ having spent two Years in going and coming, still thwarted by those who envy’d him in the Country, to such a Degree, that had it not been for an Antidote, he must have dy’d of Poison given him by some Villains, could not order his Affairs and begin his Expedition till the Year 1682. He set out at length, and to the End his Discovery of the _Missisipi_ might be compleat, he caus’d Father _Hennepin_, a Recolet, with some others, to travel to the Northward, that they might find out the Source of that River, and they found it, about the 50th Degree of North Latitude. For his own Part, he proceeded to the Westward and found the River of the _Islinois_, which he call’d the River of _Seignelay_, and following its Course, came into the _Missisipi_, where the other discharges it self. He then concluded he had no more to do, but to run down to its Mouth, whether in the South Sea or the Gulph of _Mexico_. All along its Banks he found many Savage Nations, with whom, by Means of his Presents, he enter’d into Alliances, and gave the Country the Name of _Louisiana_, to honour the Name and Memory of our August Monarch, in whose Reign those Discoveries were made. At length, the Course of the _Missisipi_ convey’d Monsieur _de la Sale_ to its Mouths, as falling into the Gulph of _Mexico_ in two Streams, and he arriv’d there in the Month of _April_ 1682 or 1683, for the Dates of those who have writ concerning it, make either of those Years. He stay’d there some Days, to take Observations and place some Marks which he might know again, when he return’d. Being satisfied with having found some Part of what he sought, he return’d the same Way he had gone, and came again to _Quebeck_ in _Canada_, in order to go over to _France_, and thence to make a Tryal to find that Mouth of the _Missisipi_ by the Gulph of _Mexico_, which he had already discover’d by the Way of _Canada_, and to secure it; for he thought it much more advantageous to know it by the Way of the Sea, than to go thither by