Samuel G. Camp, Fishing with Floating Flies
“ As the dry fly man works upstream and the trout habitually lie facing the current, the careful and quiet angler seldom needs to cast a long line—provided, of course, he is casting practically straight up and actually stalking the fish from behind. But when casting diagonally up and across from either bank, in which manner it may happen that a great deal of the water may be most advantageously worked, the familiar fact that "keeping out of sight" is half the battle in trout-fishing must never be forgotten. ”
