purer, more expressive, softer—so low that at a distance of forty yards I could hardly have heard it. But its greatest charm was its resemblance to the human voice—a voice purified and brightened to something almost angelic. Imagine, then, my impatience as I sat there straining my sense, my deep disappointment when it was not repeated! I rose at length very reluctantly and slowly began making my way back; but when I had progressed about thirty yards, again the sweet voice sounded just behind me, and turning quickly I stood still and waited. The same voice, but not the same song—not the same phrase; the notes were different, more varied and rapidly enunciated, as if the singer had been more excited. The blood rushed to my heart as I listened; my nerves tingled with a strange new delight, the rapture produced by such music heightened by a sense of mystery. Before many moments I heard it again, not rapid now, but a soft warbling, lower than at first, infinitely sweet and tender, sinking to lisping sounds that soon ceased to be audible; the whole having lasted as long as it would take me to repeat a sentence of a dozen words. This seemed the singer's farewell to me, for I waited and listened in vain to hear it repeated; and after getting back to the starting-point I sat for upwards of an hour, still hoping to hear it once more!
The westering sun at length compelled me to quit the wood, but not before I had resolved to return the next morning and seek for the spot where I had met with so enchanting an experience. After crossing the sterile belt I have mentioned within the wood, and just before I came
