The subject of discussion this evening is “ The Problem of Colour in Relation to the Idea of Equality,” and though the last seven words would seem to indicate some special limitation, it is in fact difficult to divide this question into watertight compartments. For the basis of all philosophical study is accuracy of definition, and we must therefore begin by forming a precise conception of what the phrase “ Colour problem ” connotes before we proceed to discuss its bearing from a physiological, political, or sociological “ equality ” point of view. Thus at the outset we find ourselves in the very heart of a controversy, for it is difficult to find two people who will agree as to the definition of the Colour problem. Physiologically there is no line of demarcation, for of the inhabitants of North Central Asia many are as light—and indeed lighter—in the colour of their skin, their hair and their eyes than the Southern races of Europe, and the same may be true of Creoles, Quadroons, and Octaroons.