"What has an economist to do with beauty?" you may ask. Leave to them the discussion of the price of corn and cotton, but surely in the field of beauty they are outside their proper sphere. Questions of beauty are aesthetic, philosophical or even ethical; they are not to be enlightened by so material a science. That view of the economist's province which limits him to the ordinary market-a common enough view, to be sure-is, however, a very narrow one. The economist, as Professor Marshall so well puts it, is concerned with man "in the ordinary business of life". He, is concerned, among other things, with seeing that men secure maximum satisfactions from their expenditures of time, energy and money; and the satisfactions which make up the sum total of human consumption obviously include much more than corn, cotton and steel rails.