Though having a widely extended general meaning, the term "Art" in common parlance applies to the fine arts only, but the term "Arts" has reference as well to certain industries which have utility for their primary object. This work considers only the fine arts, and when the writer uses the term "Art" or "Arts" he refers to one or more of these arts, unless a particular qualification is added. The definition of "Art" as applied to the fine arts, upon which he relies, is "The production of beauty for the purpose of giving pleasure," or as it is more precisely put, "The beautiful representation of nature for the purpose of giving disinterested pleasure." This is, broadly, the definition generally accepted, and is certainly the understanding of art which has guided the hands of all the creators of those great works in the various arts before which men have bowed as triumphs of human skill. There has been no satisfactory definition of "Beauty," nor can the term be shortly interpreted until there is a general agreement as to what it covers. Much of the confusion arising from the contradictory theories of æstheticists in respect of the perception of beauty is apparently due to the want of separate consideration of emotional beauty and beauty of mind, that is to say, the beauty of sensorial effects and beauty of expression respectively.[1] There are kinds of sensorial beauty which depend for their perception upon immediately preceding sensory experience, or particular coexistent surroundings which are not necessarily permanent, while in other cases a certain beauty may be recognized and subsequently appear to vanish altogether. From this it is obvious that any æsthetic system based upon the existence of an objectivity of beauty must fall to the ground. On the other hand, without an objectivity there can be no system, because in its absence a line of reasoning explaining cause and effect in the perception of beauty, which is open to demonstration, is naturally impossible. Nor may we properly speak of a philosophy of art.[2] We may reasonably consider æsthetics a branch of psychology, but the emotions arising from the recognition of beauty vary only in degree and not in kind, whether the beauty be seen in nature or art. Consequently there can be no separate psychological enquiry into the perception of beauty created by art as distinguished from that observable in nature.