'How can I tell, sir. It is three-quarters of a mile away.'
'Very poor eye - very poor. Take the glass.'
I took the glass, and presently said - 'I can't tell. I suppose that that
bank is about a foot and a half high.'
'Foot and a half! That's a six-foot bank. How high was the bank along
here last trip?'
'I don't know; I never noticed.'
'You didn't? Well, you must always do it hereafter.'
'Why?'
'Because you'll have to know a good many things that it tells you. For
one thing, it tells you the stage of the river - tells you whether
there's more water or less in the river along here than there was last
trip.'
'The leads tell me that.' I rather thought I had the advantage of him
there.
'Yes, but suppose the leads lie? The bank would tell you so, and then
you'd stir those leadsmen up a bit. There was a ten-foot bank here last
trip, and there is only a six-foot bank now. What does that signify?'
'That the river is four feet higher than it was last trip.'
'Very good. Is the river rising or falling?'
'Rising.'
'No it ain't.'
'I guess I am right, sir. Yonder is some drift-wood floating down the
stream.'
'A rise starts the drift-wood, but then it keeps on floating a while
after the river is done rising. Now the bank will tell you about this.
Wait till you come to a place where it shelves a little. Now here; do
you see this narrow belt of fine sediment That was deposited while the
water was higher. You see the driftwood begins to strand, too. The bank
helps in other ways. Do you see that stump on the false point?'
'Ay, ay, sir.'
'Well, the water is just up to the roots of it. You must make a note of
that.'
'Why?'
'Because that means that there's seven feet in the chute of 103.'
'But 103 is a long way up the river yet.'
'That's where the benefit of the bank comes in. There is water enough
in 103 NOW, yet there may not be by the time we get there; but the bank
will keep us posted all along. You don't run close chutes on a falling
river, up-stream, and there are precious few of them that you are
allowed to run at all down-stream. There's a law of the United States
against it. The river may be rising by the time we get to 103, and in
that case we'll run it. We are drawing - how much?'
'Six feet aft, - six and a half forward.'
'Well, you do seem to know something.'
'But what I particularly want to know is, if I have got to keep up an
everlasting measuring of the banks of this river, twelve hundred miles,
month in and month out?'
'Of course!'
My emotions were too deep for words for a while.
