As in a matter of this sort personal testimony is of more value than anything else, I may perhaps be permitted to refer to some of my own experiences. I have often been in the state of mind and body so vividly described by Berlioz, except as regards the numbness of the extremities and the partial paralysis of the sensory nerves. Hundreds of times I have enjoyed that harmless aesthetic intoxication which I believe to be more delicious to the initiated than the sweet delights of an opium eater--a musical intoxication which does not only fill the brain with floods of voluptuous delight, but sends thrills down the spinal column and to the very finger-tips, like so many electric shocks. As a boy, every experience of this sort fired my imagination with ambition, and led to all sorts of noble resolutions, some of which, at any rate, were carried into execution. The deepest impression ever made on me by any work of art was at Munich, ten years ago, when I heard for the first time Wagner's "Tristan and Isolde," which I was already familiar with through the pianoforte score. The performance began at six o'clock, and I had had nothing to eat since noon. It lasted till eleven o'clock, and one might imagine that, after all this emotional excitement, I must have been ravenously hungry. So I was; but without the slightest affectation, I was horrified at the mere thought of indulging in such a coarse act as eating after enjoying such ravishing music. So I hurried back to the hotel, eager to get into my room and indulge in a long fit of weeping; and not a wink did I sleep that night, the most passionate scenes from the opera haunting me persistently, and almost as vividly as if I had been back in the theatre.