The bill authorizing the formation of a company to open the navigation of the Potomac and James rivers passed the legislatures of Virginia and Maryland. It is difficult for us to realize how canals were viewed a century ago; how commercial prosperity seemed to depend upon their building. Already Washington, in fancy, had covered the West with a network of canals. As early as 1784, he wrote to Governor Harrison urging a survey of the Ohio; he added: "Let the courses and distances be taken to the mouth of the Muskingum and up that river to the carrying place of the Cuyahoga; down the Cuyahoga to Lake Erie, and thence to Detroit. Let them do the same with Big Beaver Creek and with the Scioto. In a word, let the waters east and west of the Ohio which invite our notice by their proximity, and by the ease with which land transportation may be had between them and the lakes on the one side, and the rivers Potomac and James on the other, be explored, accurately delineated, and a correct and connected map of the whole be presented to the public.... The object in my estimation is of vast commercial and political importance." Washington's laborious method of securing necessary information concerning the West, and his earnestness in not omitting any phase of the project are exemplified in a letter to Richard Butler, newly appointed superintendent of Indian affairs, written in 1786: "As I am anxious to learn the nature of the navigation of Beaver Creek, the distance, and what kind of a portage there is between it and Cayahoga, or any other nearer navigable water of Lake Erie, and the nature of the navigation of the latter; and also the navigation of the Muskingum, the distance and sort of portage across to the navigable waters of Cayahoga or Sandusky, and the kind of navigation therein; you would do me an acceptable favor to convey them to me, with the computed distances from the River Ohio by each of these routes to the lake itself." In a letter to Henry Lee Washington, again, he writes: "Till you get low down the Ohio, I conceive, that, considering the length of the voyage to New Orleans, the difficulty of the current, and the time necessary to perform it in, it would be the interest of the inhabitants to bring their produce to our ports; and sure I am there is no other tie by which they will long form a link in the chain of federal union."