Glaucus; Or, The Wonders of the Shore

The consequence of this ignorance is that they depend for good patterns of flies on mere chance and experiment; and that the shop patterns, originally excellent, deteriorate continually, till little or no likeness to their living prototype remains, being tied by town girls, who have no more understanding of what the feathers and mohair in their hands represent than they have of what the National Debt represents. Hence follows many a failure at the stream-side; because the “Caperer,” or “Dun,” or “Yellow Sally,” which is produced from the fly-book, though, possibly, like the brood which came out three years since on some stream a hundred miles away, is quite unlike the brood which is out to-day on one’s own river. For not only do most of these flies vary in colour in different soils and climates, but many of them change their hue during life; the Ephemeræ, especially, have a habit of throwing off the whole of their skins (even, marvellously enough, to the skin of the eyes and wings, and the delicate “whisks” at their tail), and appearing in an utterly new garb after ten minutes’ rest, to the discomfiture of the astonished angler.