"Grayling will rise readily to the artificial fly, and although they will come again time after time if missed (or perhaps I should say if they miss the fly, which is more usual), they require the neatest and finest tackle and the most delicate handling to secure them; and as Francis truly says, 'when you have hooked a grayling, your next job is to land him.'--There is a lot of difference between the way a well-conditioned trout and grayling fight after being hooked, and this may account for some of the condemnation heaped upon the latter as to its non-sportive character; for although not so lively as the trout with its mad rushes for liberty, yet the kind of resistance is more dangerous to the hold you have on him, for the grayling tries the hold of the hook in every possible way, and from every possible point of that hold. To my mind a grayling is much more difficult to land than a trout, and the more I fish for grayling the more convinced I am of his gameness and sporting qualities. Certainly there are a great many more grayling lost after being hooked than trout, and this is accounted for principally not so much from the reputed tenderness of the mouth as from the fact of the fish not being so firmly hooked as the trout usually is. "The ideas of grayling not heading up-stream and of being deleterious to the trout have been perpetuated by author after author, just copying one another without really ascertaining the facts.... As regards the advisability of introducing grayling into a trout stream, that depends entirely upon the nature of the river. As far as my experience and observation go, grayling only become detrimental to the trout in that, being active and voracious feeders, they consume the food that otherwise would have belonged to and been partaken of by the trout. It is certain that these fish live together in general amity. The grayling is but seldom a fish eater, and therefore any accusation as to its being destructive to the fry of trout is untenable. That it, in the trout-spawning season, may help itself to what it can find of the superfluous ova which float down the stream no one can object to, but as to its burrowing in the redds and disturbing the hatching ova. I very much doubt it. Both the late Dr. Brunton and Dr. Hamilton were very strong in their assertion that this was a matter of impossibility with the grayling, and yet we are assured by Dr. James A. Henshall that the fry of grayling are as much addicted to cannibalism as the pike-perch fry."