He arrives at Michilimackinac in 1688, and there first hears of the assassination of La Salle. In 1689 he visits Green Bay, and passes through the Fox and Wisconsin Rivers into the Mississippi. So far, his work appears to be the result of actual observation, and is entitled to respect; but what he relates of Long River appears wholly incredible, and can only be regarded as some flight of the imagination, intended to gratify the public taste for travels, during an age when it had been highly excited by the extravagant accounts which had been published respecting the wealth, population, and advantages of Peru, Mexico, the English and Dutch colonies, New France, the Illinois, and various other parts of the New World. To convey some idea of this part of the Baron's work, it will be sufficient to observe that after travelling ten days above the mouth of the Wisconsin, he arrives at the mouth of a large stream, which he calls Long River, and which he ascends eighty-four days successively, during which he meets with numerous tribes of savages, as the Eskoros, Essenapes, Pinnokas, Mozemleeks, &c. He is attended a part of the way by five or six hundred, as an escort; sees at one time two thousand savages upon the shore; and states the population of the Essenapes at 20,000 souls; but this tribe is still inferior to the Mozemleeks in numbers, in arts, and in every other prerequisite for a great people. "The Mozemleek nation," he observes, "is numerous and puissant. The four slaves of that country informed me that, at the distance of 150 leagues from the place where I then was, their principal river empties itself into a salt lake of three hundred leagues in circumference, the mouth of which is about two leagues broad; that the lower part of that river is adorned with six noble cities, surrounded with stone, cemented with fat earth; that the houses of these cities have no roofs, but are open above like a platform; that, besides the above-mentioned cities, there are an hundred towns, great and small, round that sort of sea; that the people of that country make stuffs, copper axes, and several other manufactures, &c."