...the valley of the Ohio, and the great plain from the west, in the valley of the lower Mississippi. " The intersection of the great slopes from the south...creates what deserves to be regarded as a geographical center of this remarkable region — a position which is rapidly becoming, from causes depending upon...

...the valley of the Ohio, and the great plain from the west, in the valley of the lower Mississippi. " The intersection of the great slopes from the south...and Ohio, creates what deserves to be regarded as a gcographical center of this remarkable region — a position which is rapidly becoming, from causes...

...the valley of the Ohio, and the greater plane from the west, in the valley of the lower Mississippi. The intersection of the great slopes from the south...population of the whole North American Continent. A single plane spreads from the summit of the Alleghany Mountains to the Atlantic coast, and turning...

...not taken it all in before. Under the light shed upon it by my brother, I was now able to see that the intersection of the great "slopes" from the South...from the North and West, near the confluence of the Missouri, Mississippi and Ohio rivers, formed the geographical centre of a territory equal in area...