tage.

Sounding is done in this way. The boat ties up at the shore, just above
the shoal crossing; the pilot not on watch takes his 'cub' or steersman
and a picked crew of men (sometimes an officer also), and goes out in
the yawl--provided the boat has not that rare and sumptuous luxury, a
regularly-devised 'sounding-boat'--and proceeds to hunt for the best
water, the pilot on duty watching his movements through a spy-glass,
meantime, and in some instances assisting by signals of the boat's
whistle, signifying 'try higher up' or 'try lower down;' for the surface
of the water, like an oil-painting, is more expressive and intelligible
when inspected from a little distance than very close at hand. The
whistle signals are seldom necessary, however; never, perhaps, except
when the wind confuses the significant ripples upon the water's surface.
When the yawl has reached the shoal place, the speed is slackened, the
pilot begins to sound the depth with a pole ten or twelve feet long, and
the steersman at the tiller obeys the order to 'hold her up to
starboard;' or, 'let her fall off to larboard;'{footnote [The term
'larboard' is never used at sea now, to signify the left hand; but was
always used on the river in my time]} or 'steady--steady as you go.'

When the measurements indicate that the yawl is approaching the shoalest
part of the reef, the command is given to 'ease all!' Then the men stop
rowing and the yawl drifts with the current. The next order is, 'Stand
by with the buoy!' The moment the shallowest point is reached, the
pilot delivers the order, 'Let go the buoy!' and over she goes. If the
pilot is not satisfied, he sounds the place again; if he finds better
water higher up or lower down, he removes the buoy to that place. Being
finally satisfied, he gives the order, and all the men stand their oars
straight up in the air, in line; a blast from the boat's whistle
indicates that the signal has been seen; then the men 'give way' on
their oars and lay the yawl alongside the buoy; the steamer comes
creeping carefully down, is pointed straight at the buoy, husbands her
power for the coming struggle, and presently, at the critical moment,
turns on all her steam and goes grinding and wallowing over the buoy and
the sand, and gains the deep water beyond. Or maybe she doesn't; maybe
she 'strikes and swings.' Then she has to while away several hours (or
days) sparring herself off.

Sometimes a buoy is not laid at all, but