The expedition, after much contrary weather, reached Sault Ste. Marie, and the Governor, after much difficulty, here negotiated a treaty with the Indians. Going by way of the Fond du Lac, the party entered the St. Louis River, and made a tiresome portage to Sandy Lake station. This fur-trading post the party left in July, and ascended the Upper Mississippi to the Upper Cedar Lake, the name of which was changed to Lake Cassina, and afterwards Cass Lake. From the Indians Governor Cass learned that Lac La Biche--some fifty miles further on--was the true source of the river, but he was deterred by their accounts of the lowness of the water and the fierceness of the current from attempting the journey any further. The expedition ingloriously retired from the project, going down to St. Anthony Falls, ascending the Wisconsin River, and thence down Fox River. The Governor himself in September arrived in Detroit, having crossed the Southern Peninsula of Michigan on horseback. Hon. J. W. Brown says: "When Governor Cass abandoned his purpose to ascend the Mississippi to its source, he was within an easy distance, comparatively speaking, of the goal sought for. Less timidity had often been displayed in canoe voyages, even in the face of low water, and an O-z-a-win-dib or a Keg-wed-zis-sag, Indian guides, would have easily won the battle of the day for Governor Cass." SCHOOLCRAFT AT LENGTH SUCCEEDS. Henry Rowe Schoolcraft, of good family, was born in New York State, and was educated in that State and in Vermont. His first expedition was in company with De Witt Clinton in a journey to Missouri and Arkansas. On his return he published two treatises which gave him some reputation as an explorer and scientist. We have already spoken of the part taken by him in the expedition of Governor Cass. He received after this the appointment of "Superintendent of Indian Affairs" at Sault Ste. Marie, and to this we are indebted for the treasury of Indian lore published in four large quarto volumes, from which Longfellow obtained his tale of "Hiawatha." In 1830 Schoolcraft received orders from Washington, ostensibly for conference with the Indians, but in reality to determine the source of the Mississippi. The Rev. W. T. Boutwell, representing a Board of Missions, accompanied the expedition.