The director of the Dpt des Cartes of the Marine and Colonies, at Paris, in 1872 possessed a rich mass of historical documents, the collection of which had covered thirty years of his life.  This material related chiefly to the French rule in North America, and its owner had offered to dispose of it to the French government on condition that the entire collection should be published.  The French government was, however, only willing to publish parts of the whole, and the director retained possession of his property.  Through the efforts of Mr. Francis Parkman, the truthful American historian, supported by friends, an appropriation was made by Congress, in 1873, for the purchase and publication of this valuable collection of the French director; and it is now the property of the United States government.  All that relates to the Sieur de la Salle—­his journals and letters—­has been published in the original French, in three large volumes of six hundred pages each.  La Salle discovered the Ohio, yet the possession of the rich historical matter referred to throws but little light upon the details of this important event.  The discoverer--of the great west, in an address to Frontenac, the governor of Canada, made in 1677, asserted that he had discovered the Ohio, and had descended it to a fall which obstructed it.  This locality is now known as the “Falls of the Ohio,” at Louisville, Kentucky.

The second manuscript map of Galine’e, made about the year 1672, has upon it this inscription:  “River Ohio, so called by the Iroquois on account of its beauty, which the Sieur de la Salle descended.”  It was probably the interpretation of the Iroquois word Ohio which caused the French frequently to designate this noble stream as “La belle rivire.”

A little later the missionary Marquette designed a map, upon which he calls the Ohio the “Ouabouskiaou.”  Louis Joliet’s first map gives the Ohio without a name, but supplies its place with an inscription stating that La Salle had descended it.  In Joliet’s second map he calls the Ohio “Ouboustikou.”

After the missionaries and other explorers had given to the world the knowledge possessed at that early day of the great west, a young and talented engineer of the French government, living in Quebec, and named Jean Baptiste Louis Franquelin, completed, in 1684, the most elaborate map of the times, a carefully traced copy of which, through the courtesy of Mr. Francis Parkman, I have been allowed to examine.  The original map of Franquelin has recently disappeared, and is supposed to have been destroyed.  This map is described in the appendix to Mr. Parkman’s “Discovery of the Great West,” as being “six feet long and four and a half wide.”  On it, the Ohio is called “Fleuve St. Louis, ou Chucagoa, ou Casquinampogamou;” but the appellation of “River St. Louis” was dropped very soon after the appearance of Franquelin’s map, and to the present time it justly retains the Iroquois name given it by its brave discoverer La Salle.