The evolution of clothing will, therefore, be in the direction of adaptability to climate and occupation. New fabrics will no doubt be invented, combining the warmth of fur with the softness and flexibility of silk and the strength of linen. Dress will be light, so that half a dozen changes of costume can be carried in a handbag, and will be so designed that each change will involve no more inconvenience than does the removal of a raincoat. And so we shall eventually combine the Greek ideal of expressive drapery with the exacting conditions of a strenuous modern life. _Housing._――Man is an animal with a cubical shell. If the earth were reduced to the size of a football and its surface were examined with a powerful microscope, we should see it studded with incrustations like dried salt, especially about the river mouths. These incrustations would be the cities, consisting of thousands of rectangular or cube-shaped blocks. With a greater magnification we might see minute specks swarming about these shell-like houses, elongated specks with their longer axis vertical, and with a marked tendency to enter the houses at nightfall and emerge again after daybreak. If a giant had been watching the development of these incrustations for several thousand years, he would have seen them spreading from the Mediterranean and some parts of Asia till they studded the Atlantic regions. Thence, after a time, they would spread to the other side of the Atlantic, and become particularly numerous along its western shores. Watching them again for several thousand years, he might see these incrustations gradually dissolved, and the disease――he would probably call it a disease――become “generalized” all over the planet, the local incrustations giving way before a universal but only slightly crusted condition of the earth’s entire land surface.