Hal.—Trust this to me. And now, as all circumstances are favourable, begin your fishing. I recommend to you that fine pool below the bridge; there are always grayling to be caught there—and already I see some rising.
Phys.—With what imitation of flies shall we fish?
Hal.—As yesterday; a yellow fly for your stretcher, and two duns for the droppers. There, you have a good fish. And now another—both grayling.
Phys.—I shall try the rapid at the top of this long large pool; I see several fish rising there.
Hal.—Do so. You will catch fish there—trout, but I fear no grayling.
Phys.—Why not?
Hal.—In that part of the stream the water is too rough for grayling, and they like to be nearer the deep water. Lower down, in the same pool, there are large grayling to be caught.
Phys.—You are in the right; the fish I have is a large trout—at least he is not much less than 2lbs. I have landed him; shall I keep him?
Hal.—As you please: he is as good as he ever was, or ever will be in this water.
Phys.—There are now more yellow flies out than I have seen before this season. They have appeared suddenly, as if sprung from that large alder. Though you gave us in a former conversation some account of the flies used in fishing, yet I hope you have not forgot your promise, to favour us with some more details on this subject, which, both as connected with angling, and with a curious part of natural history, is very interesting.