Winthrop Packard, White Mountain Trails (1912)
“ A beaten ledge responds like a mighty gong with a humming roar that is strangely disproportionate to the means employed to produce the sound. Sometimes to stamp with the foot over a rounded surface of earth-covered granite is to produce an answering, drumlike boom that makes one suspect that he stands on a thin film of rock over a cavern. The music of a fall has many parts. One of these is the sand-dance sibilation of the shuffling waters, another this boom of the rock drum - 70 - on which the green flood beats with padded blows. ”
