"_Halieus._--No such thing. If any of you will give me your rod and fly, I will answer for it. I shall have the same success. I take your rod, Physicus--and lo! I have a fish! "_Physicus._--What can be the reason of this? It is perfectly inexplicable to me. Yet Poietes seems to throw as light as you do, and as well as he did yesterday. "_Halieus._--I am surprised that you, who are a philosopher, cannot discover the reason of this--Think a little. "_All._--We cannot. "_Halieus._--As you are my scholars, I believe I must teach you. The sun is bright, and you have been, naturally enough, fishing with your backs to the sun, which, not being very high, has thrown the shadows of your rods and yourselves upon the water, and you have alarmed the fish, wherever you have thrown a fly. You see, I have fished with my face towards the sun, and though inconvenienced by the light, have given no alarm. Follow my example, and you will soon have sport, as there is a breeze playing on the water. "_Physicus._--Your sagacity puts me in mind of an anecdote which I remember to have heard respecting the late eloquent statesman, Charles James Fox; who, walking up Bond Street from one of the club-houses with an illustrious personage, laid him a wager, that he would see more cats than the Prince in his walk, and that he might take which side of the way he liked. When they got to the top, it was found, that Mr. Fox had seen thirteen cats, and the Prince not one. The Royal personage asked for an explanation of this apparent miracle, and Mr. Fox said, 'Your Royal Highness took, of course, the shady side of the way, as most agreeable; I knew that the sunny side would be left to me,--and cats always prefer the sunshine.' "_Halieus._--There! Poietes, by following my advice, you have immediately hooked a fish; and while you are catching a brace, I will tell you an anecdote, which as much relates to fly-fishing as that of Physicus, and affords an elucidation of a particular effect of light.