IN the contemplation of the _Aspect_ before him, what gave that aesthetic man the most immediate and undoubted pleasure was its colour, or, more correctly speaking, its colours. Psycho-Physiologists have not yet told us why colours, taken singly and apart from their juxtaposition, should possess so extraordinary a power over what used to be called our animal spirits, and through them over our moods; and we can only guess from analogy with what is observed in plants, as well as from the nature of the phenomenon itself, that various kinds of luminous stimulation must have some deep chemical repercussion throughout the human organism. The same applies, though in lesser degree, to sounds, quite independent of their juxtaposition as melodies and harmonies. As there are colours which _feel, i.e._ make _us_ feel, more or less warm or cool, colours which are refreshing or stifling, depressing or exhilarating quite independent of any associations, so also there are qualities of sound which enliven us like the blare of the trumpet, or harrow us like the quaver of the accordion. Similarly with regard to immediacy of effect: the first chords of an organ will change our whole mode of being like the change of light and colour on first entering a church, although the music which that organ is playing may, after a few seconds of listening, bore us beyond endurance; and the architecture of that church, once we begin to take stock of it, entirely dispel that first impression made by the church's light and colour. It is on account of this doubtless physiological power of colour and sound, this way which they have of invading and subjugating us with or without our consent and long before our conscious co-operation, that the Man-on-the-Hill's pleasure in the aspect before him was, as I have said, first of all, pleasure in colour. Also, because pleasure in colour, like pleasure in mere sound-quality or _timbre,_ is accessible to people who never go any further in their aesthetic preference. Children, as every one knows, are sensitive to colours, long before they show the faintest sensitiveness for shapes. And the timbre of a perfect voice in a single long note or shake used to bring the house down in the days of our grandparents, just as the subtle orchestral blendings of Wagner entrance hearers incapable of distinguishing the notes of a chord and sometimes even incapable of following a modulation.