Even tramps have at intervals to replace the rags which cover them, and while, for all practical purposes, every one else takes off his clothes when going to bed and puts them on again when getting up, many of those who are at work in the daytime "dress for dinner" in the evening. Moreover, Society may demand a further expenditure of time on the part of its members, and the rule may be laid down that the higher the standing of a civilized individual, the more often does he change his garments. In fact, more than one monarch, from the way in which he appears in different uniforms at various functions which follow one another in quick succession, has been likened to the now familiar "lightning change artist" of the music-hall stage. It is thus quite clear that all of us are more or less under the thrall of dress. Those, therefore, who find the position irksome, will gain solace from the interesting investigations which can be made into the origin and development of costume. Others, again, whose clothes already find favour in their eyes, will enjoy looking at them from a different point of view. As a matter of fact, our artificial coverings have become so much a part of our life that one may perhaps be allowed to apply the methods of the naturalist to their consideration, and deal with them as if they were part and parcel of the creature which wears them. Darwin established beyond a doubt[1] that the plants and animals of to-day are the direct descendants of older and often very different forms, and it is the task and delight of the naturalist to trace their genealogies. Most useful suggestions may be obtained from the small vestiges that remain in the bodies of present-day creatures, of structures which in early times were important and useful organs. For instance, if the skin be lifted from the head of a "slow worm" we find a third eye, which tells us that once its ancestors, like the giant Cyclops, were able to look out from the middle of their faces. Again, to take a case which applies to ourselves, and has a melancholy interest for us, one might mention the vermiform appendix. This is a remnant of a great sac which once was useful when our ancestors were vegetarians; now it is worse than useless, for it is very liable to become irritated and give rise to what is known as appendicitis. So long as a quarter of a century ago Sir George Darwin pointed out[2] that the great theory of evolution established by his father could be applied with much advantage to the study of dress, and it will be seen as we proceed that not the least fascinating part of the subject are vestiges similar to those which we have just described, and which have often survived solely for ornamental reasons.