Our thought so ended, however, would leave science and religion jealously guarding their boundaries, not cooperating as allies. _Such suspicious recognition of each other's realms does not exhaust the possibilities._ When once the separate functions each by the other have been granted, we are free to turn our thought to the inestimable service which each is rendering. Consider the usefulness of science to the ideal causes of which religion is the chief! Science has given us the _new universe_, not more marvelous in its vastness than in its unity. For the spectroscope has shown that everywhere through immeasurable space the same chemical properties and laws obtain; the telescope has revealed with what mathematical precision the orbits in the heavens are traced and how unwaveringly here or among the stars gravitation maintains its hold. Man never had so immense and various and yet so single and unified a world before. Polytheism once was possible, but science has banished it forever. Whatever may be the source of the universe, it is _one_ Source, and whoever the creator, he is more glorious in man's imagination than he could ever have been before. Science also has put at the disposal of the ideal causes _such instruments as by themselves they would never have possessed_. We are hoping for a new world-brotherhood, and we pray for it in Christian churches as the Father's will. But the instruments by which the inter-racial fellowship must be maintained and without which it would be unthinkable are science's gift. Railroads, steamships, telegraphs, telephones, wireless--these are the shuttles by which the ideal faiths in man's fraternity may be woven into fact. When Christian physicians heal the sick or stamp out plagues that for ages have been man's curse and his despair, when social maladjustments are corrected by Christian philanthropy, and saner, happier ways of living are made possible; when comforts that once were luxuries are brought within the reach of all, and man's life is relieved of crushing handicaps; when old superstitions that had filled man's life with dread for ages are driven like fogs before science's illumination, and religious faith is freed of their incumbrance; when great causes of relief have at their disposal the unimaginable wealth which our modern economic system has created--can anyone do sufficient justice to man's debt to science? And once more science has done religion an inestimable service in establishing as a point of honor the ambition _to see straight and to report exactly_. The tireless patience, the inexorable honesty, the sacrificial heroism of scientists, pursuing truth, is a gift of incalculable magnitude. Huxley is typical of science at its best when he writes in his journal his ideal--"To smite all humbugs however big; to give a nobler tone to science; to set an example of abstinence from petty personal controversies and of toleration for everything but