After a day's rest, Joliet and his party left Akamsea July 17th, and tediously retraced their course against the strong currents of the Mississippi. Through the advice of the Indians they quitted the great river at the mouth of the Illinois, which greatly shortened their way and brought them with little trouble to the present site of Chicago, they passing on the way through an Illinois town, Kaskaskia, of seventy-four cabins, from which an escort of braves guided them to Lake Michigan. Marquette appears to have had a prophetic eye for the great future of the present State of Illinois, for he says, "We have seen nothing like this river for the fertility of the land, its prairies, woods, wild cattle, deer, wild-cats, bustards, swans, ducks, parrots, and even beaver; its many little lakes and rivers." Coasting the shores of Lake Michigan, the end of September, 1673, brought them to Green Bay, where the rude comforts of a frontier mission and the solace of friendly intercourse were once more theirs. They had been absent four months, and in that time had paddled their frail canoes more than twenty-five hundred miles. Here Marquette remained to recruit his health, impaired by physical hardships, continued exposure, and lack of suitable food. The hardy Joliet lost no time, however, but pressed on, too eager to report his grand discoveries to Frontenac. As mentioned in Frontenac's dispatch, the misfortunes of Joliet began when his long and perilous voyage was practically ended. In the rapids of La Chine, near Montreal, his canoe overset; three of his party were drowned, all his papers lost, and he himself narrowly escaped. In a letter to Frontenac he says: "I had escaped every peril from the Indians; I had passed forty-two rapids, and was on the point of disembarking, full of joy at the success of so long and difficult an enterprise, when my canoe capsized after all danger seemed past. I lost two men, an Indian boy and my box of papers within sight of the first French settlements, which I had left almost two years before. Nothing now remains to me but my life and the ardent desire to employ it on any service which you may be pleased to direct." We have to rest content with the graphic account written by Marquette, as it was impossible for Joliet to reproduce his lost journal. As regards the map, his natural and acquired skill in cartography was such that Joliet reproduced his discoveries in the shape of a small map, which he presented to Frontenac, by whom it was sent to Colbert, with a despatch dated November 14, 1674, and now is in the famous Chart Office at Paris. It is entitled, "Map of the Discovery of Sieur Joliet," etc., and has a brief explanatory letter thereon, from which I have quoted above.