The wood-thrush sang on the distant shore, and the laugh of some loons, sporting in a concealed western bay, as if inspired by morning, came distinct over the lake to us, and, what was remarkable, the echo which ran round the lake was much louder than the original note; probably because, the loons being in a regularly curving bay under the mountain, we were exactly in the focus of many echoes, the sound being reflected like light from a concave mirror.
