enemy, and at the lowest estimate it will take several generations before tuberculosis is placed at last, with leprosy and typhus, among the vanquished diseases.  Education, organization, cooperation—­these are the weapons of our warfare.  Into details I need not enter.  The work done by the National Association under the strong guidance of its secretary, Mr. Farrand, the pioneer studies of Trudeau and the optimism which he has brought into the campaign, the splendid demonstration by the New York Board of Health of what organization can do, have helped immensely in this world-wide conflict.

Some years ago, in an address at Edinburgh, I spoke of the triple gospel which man has published—­of his soul, of his goods, of his body.  This third gospel, the gospel of his body, which brings man into relation with nature, has been a true evangelion, the glad tidings of the final conquest of nature by which man has redeemed thousands of his fellow men from sickness and from death.

If, in the memorable phrase of the Greek philosopher, Prodicus, “That which benefits human life is God,” we may see in this new gospel a link betwixt us and the crowning race of those who eye to eye shall look on knowledge, and in whose hand nature shall be an open book—­an approach to the glorious day of which Shelley sings so gloriously: 

     Happiness
     And Science dawn though late upon the earth;
     Peace cheers the mind, health renovates the frame;
     Disease and pleasure cease to mingle here,
     Reason and passion cease to combat there,
     Whilst mind unfettered o’er the earth extends
     Its all-subduing energies, and wields
     The sceptre of a vast dominion there.

     (Daemon of the World, Pt.  II.)