The Sportswoman's Library, Vol…
“ Salmon are distinctly less clever than trout, and the same precautions against being seen are not so necessary, although always advisable even in the case of the former, which will also be attracted by a much coarser form of lure. No doubt the reason is partly that we fish for salmon and its varieties—the sea and bull-trout—in deeper water of which the surface, being broken by the current, is roughened and intercepts their view of the upper world. ”
