Perhaps I needed somebody to point out the difference.
"The two banks of the river were at first much alike, but after a few hours the left bank became more hilly, and at intervals presented bluffs and rocks, rude and irregular in shape, which we imagined to be ruins of some old castle.
"At intervals, too, we passed steamers going up to St.Louis, all laden with passengers.

We exulted in our majestic march over the waters.

I thought it the very perfection of travelling, and wished that all my family and all my friends were on board.
"I wondered at the stupidity of the rest of the world, and thought that they ought all to leave the marts of business, to step from the desk, the counting-room, and the workshop on board the 'Magnolia,' and go down the length of the 'Father of Waters.' "And so they would, I suppose, but for sand-bars.

Here we are five hours out, and fast aground! We were just at dinner, the captain making himself agreeable, the dinner showing itself to be good, when a peculiar motion of the boat made the captain heave a sigh--he had been heaving the lead all the morning.

'Ah,' he said, 'just what I feared; we've got to one of those bad places, and we are rubbing the bottom.' "I asked very innocently if we must wait for the tide, and was informed that there was no tide felt on this part of the river.