But the function of dress as an evidence of ability to pay does not end with simply showing that the wearer consumes valuable goods in excess of what is required for physical comfort. Simple conspicuous waste of goods is effective and gratifying as far as it goes; it is good prima facie evidence of pecuniary success, and consequently prima facie evidence of social worth. But dress has subtler and more far-reaching possibilities than this crude, first-hand evidence of wasteful consumption only. If, in addition to showing that the wearer can afford to consume freely and uneconomically, it can also be shown in the same stroke that he or she is not under the necessity of earning a livelihood, the evidence of social worth is enhanced in a very considerable degree. Our dress, therefore, in order to serve its purpose effectually, should not only he expensive, but it should also make plain to all observers that the wearer is not engaged in any kind of productive labor. In the evolutionary process by which our system of dress has been elaborated into its present admirably perfect adaptation to its purpose, this subsidiary line of evidence has received due attention. A detailed examination of what passes in popular apprehension for elegant apparel will show that it is contrived at every point to convey the impression that the wearer does not habitually put forth any useful effort. It goes without saying that no apparel can be considered elegant, or even decent, if it shows the effect of manual labor on the part of the wearer, in the way of soil or wear. The pleasing effect of neat and spotless garments is chiefly, if not altogether, due to their carrying the suggestion of leisure-exemption from personal contact with industrial processes of any kind. Much of the charm that invests the patent-leather shoe, the stainless linen, the lustrous cylindrical hat, and the walking-stick, which so greatly enhance the native dignity of a gentleman, comes of their pointedly suggesting that the wearer cannot when so attired bear a hand in any employment that is directly and immediately of any human use. Elegant dress serves its purpose of elegance not only in that it is expensive, but also because it is the insignia of leisure. It not only shows that the wearer is able to consume a relatively large value, but it argues at the same time that he consumes without producing.