It is a pleasure to all of us to hold forth upon subjects about which we know very little. It is particularly a temptation to university professors to get away from the subjects of their own chairs and lecture as dogmatically as their nature demands on subjects of other people's chairs. That is why I am speaking to-night about Psychology. As to Vice, the case is a little different. Even if my own experience is regrettably limited, I have for some years studied the Chairman, and I bring my observations before a society full of persons whose range and profundity of knowledge will be sufficient to correct any hasty generalizations on my part.