The World's Fair, in this carefully planned purpose, affords a fine model for the Lewis and Clark Exposition. But Portland is not simply to do for the Pacific Northwest and the other peoples in close economic and commercial relations with it what Saint Louis aspires to do for the world. Saint Louis undertakes what was distinctively the nineteenth century problem--that of mastery by man of the physical forces of the world and of more nearly perfect adjustment to his natural environment. The Louisiana Purchase Exposition, with its World Congress of the Arts and Sciences, and all of its exhibits arranged to promote the development of invention and the application of scientific methods to industry, has a great mission; and yet the peculiar field which belongs to the Lewis and Clark Exposition gives it, if not a greater mission, at least one more advanced--if you please a twentieth century mission. Man in the Pacific Northwest has a peculiar problem. All the science and art of the past are his legacy. They fairly press in upon him in their appeal to him for utilization here. Man here has a physical environment so rich and so diversified as not only to invite the largest application of science and art, but also one that demands the highest organization of associated effort. In other words, the Pacific Northwest places man in such relation to history, to nature, and to his fellow-man, as to promise him here, if his inheritance is not sold for a mess of pottage, man's highest development. It rests with the Lewis and Clark Exposition to rise to the occasion. For it represents a first possible step in a grand cooperative effort to develop a social environment here commensurate with what nature has done for us. If for a ruthless, wasteful course of social evolution that would never reach any desirable goal we would realize one of steady, frictionless progress, with opportunities of fullest life open to all, we must make the Lewis and Clark Centennial fulfill its high mission. If the people of Oregon and the Pacific Northwest do not persist in their determination to make this concerted effort toward the inauguration of the highest policies of social progress here it is hard to see what occasion can bring them so near this mood again. It is the spell that the commemoration of a great event and a great movement casts over them that will hardly be repeated. The Lewis and Clark Centennial then is the flood tide of opportunity. If it is not seized and we lapse again into mere individualistic policies "all the voyage" of life in the future of the Pacific Northwest will be bound in comparative "shallows and in miseries."