It is utterly impossible for artists, either vocal or instrumental, to do themselves justice in these harum-scarum vagrantising peregrinations—no time is afforded for essential regular practice or preparation, the excitement of one performance necessarily produces reaction in the next--strange places and associates reduce their certain effects to matters of chance -- weariness produces languor and indifference, and they finally gain a contempt for the very persons who receive their efforts with indulgence.