We continue our extracts from this "philosophical angler's" delightful little book. The present will serve such as are unacquainted with the mysteries of fly-fishing, and interest all who are fond of inquiries in natural history.
Management of Flies.
Hal—Whilst you are preparing I will mention a circumstance which every accomplished fly-fisher ought to know. You changed your flies on Saturday with the change of weather, putting the dark flies on for the bright gleams of the sun, and the gaudy flies when the dark clouds appeared. Now I will tell you of another principle which it is as necessary to know as the change of flies for change of weather; I allude to the different kinds of fly to be used in particular pools, and even for particular parts of pools. You have fished in this deep pool; and if you were to change it for a shallower one, such as that above, it would be proper to use smaller flies of the same colour; and in a pool still deeper, larger flies; likewise in the rough rapid at the top, a larger fly may be used than below at the tail of the water; and in the Tweed, or Tay, I have often changed my fly thrice in the same pool, and sometimes with success—using three different flies for the top, middle, and bottom. I remember when I first saw Lord Somerville adopt this fashion, I thought there was fancy in it; but experience soon proved to me how accomplished a salmon-fisher was my excellent and lamented friend, and I adopted the lesson he taught me, and with good results, in all bright waters.
Hooks.
Hal—I never use any hooks for salmon-fishing, except those which I am sure have been made by O'Shaughnessy, of Limerick; for even the hooks made in Dublin, though they seldom break, yet they now and then bend; and the English hooks made of cast steel in imitation of Irish ones are the worst of all. There is a fly nearly of the same colour as that which is destroyed; and I can tell you that I saw it made at Limerick by O'Shaughnessy himself, and tied on one of his own hooks. Should you catch with it a fish even of 30 lbs., I will answer for its strength and temper; it will neither break nor bend.—We should have such hooks in England, but the object of the fishing-tackle makers is to obtain them cheap, and most of their hooks are made to sell, and good hooks cannot be sold but at a good price.—The early Fellows of the Royal Society, who attended to all the useful and common arts, even improved fish-hooks; and Prince Rupert, an active member of that illustrious body, taught the art of tempering hooks to a person of the name of Kirby, under whose name, for more than a century, very good hooks were sold.
Variety in Trout.
Phys.—Tell us why they are so different from the river-trout, or why there should be two species or varieties in the same water.—Hal. Your question is a difficult one, and it has already been referred to in a former conversation; but I shall repeat what I stated before, that qualities occasioned by food, peculiarities of water, &c. are transmitted to the offspring, and produce varieties which retain their characters as long as they are exposed to the same circumstances, and only slowly lose them. Plenty of good food gives a silvery colour and round form to fish, and the offspring retain these characters. Feeding on shell-fish thickens the stomach, and in many generations, probably, the gillaroo trout becomes so distinct a variety, as to render it doubtful if it be not a distinct species. Even these smallest salmon trout have green backs, only black spots, and silvery bellies; from which it is evident that they are the offspring of lake trout, or lachs forelle, as it is called by the Germans; whilst the river trout, even when 4 or 5 lbs., as we see in one of these fish, though in excellent season, have red spots.
Char.
Phys. The char[4] is a most beautiful and excellent fish, and is, of course, a fish of prey. Is he not an object of sport to the angler?—Hal. They generally haunt deep, cool lakes, and are seldom found at the surface till late in the autumn. When they are at the surface they will, however, take either fly or minnow. I have known some caught in both these ways; and have myself taken a char, even in summer, in one of those beautiful, small, deep lakes in the Upper Tyrol, near Nazereit; but it was where a cool stream entered from the mountain; and the fish did not rise, but swallowed the artificial fly under water. I have fished for them in many lakes, without success, both in England and Scotland, and also amongst the Alps; and I am told the only sure way of taking them is by sinking a line with a bullet, and a hook having a live minnow attached to it, in the deep water which they usually haunt; and in this way, likewise, I have no doubt the umbla, or ombre chevalier, might be taken.