HAL.—You may do so; but many of these fish cannot be caught; they migrate generally when the water is foul, and, except in the spring and autumn, do not so readily run at the bait. I was once nearly a month seeking for one in rivers in which they are found, between the end of June and that of July, without being able to succeed in even _seeing_ one alive; and as far as my information goes, the two places where there is most probability of taking them, are at Laybach and Ratisbon, in the tributary streams to the Sava, and in the Danube; and the best time, in the first of these situations, is in March and April, and in the second, in May. I am told, likewise, that the Izar, which runs by Munich, is a stream where they may be caught, when the water is clear: but I have never fished in this stream—it having been foul, either from rain, or the melting of the snows, whenever I have been at Munich; but I have seen in the fish-market at Munich very large huchos. Late in the autumn, or in early spring, this river must be an interesting one to fish in, as the _schill_, or _perca lucio perca_, and three other species of _perca_ are found in it—the zingel, the apron, and the _perca_ schratz—all fish of prey, and excellent food. I have eaten them, but never taken them; they are rare in European rivers, though not, like the hucho, peculiar to the tributary streams of the Danube. The schill is found likewise in the Sprey and in the Hungarian lakes, and, according to Bloch, the zingel in the Rhone. POIET.—I should like extremely to fish in the Izar: it is, I think, a new kind of pleasure to take a new kind of fish, even though it is not unknown to Natural Historians. But the most exquisite kind of angling, in my opinion, would be that of angling in a river never fished in by Europeans before; and I can scarcely imagine sport of a higher kind than that which involves a triple source of pleasure—catching a fish, procuring good food for the table, and making a discovery in Natural History, at the same time. Sir Joseph Banks, who was always a great amateur of angling, had often this kind of gratification. And to Captain Franklin and Dr. Richardson, in their expedition to the Arctic Ocean, when they were almost starving, what a delightful circumstance it must have been, to have taken with a fly those large grayling, which they mention, of a new species, equally beautiful in their appearance, and good for the table! HAL.—When a boy, I have felt an interest in sea fishing, for this reason—that there was a variety of fish; but the want of skill in the amusement—sinking a bait with a lead and pulling up a fish by main force, soon made me tired of it. Since I have been a fly-fisher, I have rarely fished in the sea, and then only with a reel and fine tackle from the rocks, which is at least as interesting an amusement as that of the Cockney fishermen, who fish for roach and dace in the Thames, which I have tried twice in my life, but shall never try again.