The gracious act of the British Medico-Psychological Association in asking me to deliver the Maudsley Lecture for 1923 is thoroughly appreciated, not only by myself, but also by the medical profession of Canada, showing as it does a further development of the relationship steadily increasing between the Mother Country and the Dominions, I shall not say Colonies, as this term has long ago become unpopular with the rising generations beyond the seas. We feel that we occupy a modest place in the list of nations, we yield to none in our devotion to King and Country, and regard a United Empire as absolutely necessary in preserving the ideals essential for the highest development of the human race.