"The source of the Mississippi River is Lake Glazier, a small lake from which water flows into Lake Itasca, which until recently was thought to be its source."
Page 73. "North Central States (Western Section).
"Recent surveys have shown that Lake Glazier is about seven feet higher than Lake Itasca, into which the former discharges its water; and it is now recognized as the source of the Mississippi River."
"Maury's Manual of Geography, University Publishing Company, New York:
"Page 56. Minnesota is crossed by the ridge or 'Height of Land' which separates the Valley of the Mississippi from the northern slope of the Great Central Plain. On this elevation, 1,600 feet above the sea, both the Mississippi and the Red River of the North take their rise, the one flowing south and the other north. The crest of the 'Height of Land' is crowned with lakes of clear water. Lake Glazier, one of these, is the source of the Mississippi...."
From Herr F. A. Brockhaus, Geographer and Publisher of Leipsic, Germany:
"I shall not fail to recognize and call public attention to your important discovery of the True Head of your Great River."