The map depicts the Great Lakes, the headwaters of the Mississippi, and the Red River of the North, with the river origins. Streeter Sale 1785. A Collection of Sumes of Mensuration and Other Sumes. Also Geography Astronomy and Geometry. By John Marshall.
Paper covers very worn, with some material missing.
Contents intact with various levels of wear to the edges of fold out pages. Paper is strong, although pages are toned largely from ink transfer. Some pages are loose. A personal work by John Marshall. A delightful compilation of various studies done in elegant manuscript calligraphy, with numerous illustrations, maps and geometrical diagrams.