I need hardly apologise to you for my appearance once more before you as a reader of a paper, yet I think it well to give you my reasons for selecting this subject for to-day's discussion. For years past I have been feeling more and more strongly that travel as treatment was being carried too far, and having often in private expressed this feeling, I think it right to assert my belief here, fully recognising that I may be looking at the subject from a wrong standpoint, and being quite ready and willing to learn by the experience of others. I recognise in myself a tendency to believe in my own experience, and thus I may be warped.