[3] Mills erected on two boats, separated at an angle, with water wheel near the bow. The natural current of the stream passing between the boats turned the wheel that moved the machinery of the mill, which would grind twenty to forty bushels of corn in twenty-four hours, according to the current of the stream. [4] Prof. Drummond. [5] Buffon. CHAPTER II. OHIO--EDUCATIONAL, SOCIAL, AND POLITICAL. Ohio is the first of the contemplated states under the Ordinance of 1787, and is the most important if not the largest state in the Union. Although geographers say there are some twenty-five states larger, yet no one has ventured to determine beyond dispute or contradiction just how large Ohio is. When the lights of education were limited to the “three R’s,” the boundary was supposed to contain about thirty-nine thousand square miles. In a short time after, the size increased to forty thousand. The area is described as the space between Lake Erie and the Ohio river; and is usually estimated to contain twenty-five million six hundred thousand acres. But some advanced information has changed these figures to forty-one thousand square miles, and has shown by the state auditor’s reports that nearly twenty-seven million acres of farm lands were returned for taxation in 1833, and the question still remains undetermined how large the state is. The state is greatly favored in regard to water navigation, having Lake Erie on the north for two hundred and thirty miles, and the Ohio river on the eastern and southern border for four hundred and thirty-five miles, giving a natural water-way around three sides of its boundary amounting to six hundred and sixty-five miles, which is more navigable water than is possessed by any other state in the Union, except California and Michigan. The vast territory east of the Mississippi river, of which Ohio formed a part, was claimed and controlled by France, and was known as the “North-western Territory,” or “Louisiana”, by French traders and missionaries as early as 1658. In 1679, La Salle established a sailing vessel on Lake Erie, and trading posts were designated at favorable points, and missionary work found its way among the resident Indian tribes that occupied the portion of territory now called Ohio.