In order to make effective the work of the Committee of One Hundred, its President, Irving Fisher, assisted by Professor Norton, organized the American Health League, which has absorbed the Public Health Defense League, an organization formed for the purpose of fighting the patent medicine evil, and awakening public interest in matters of hygiene. The Health League already numbers nine or ten thousand citizens, who are pledged to give financial and moral support to the work of the Committee of One Hundred in its efforts to establish a national Bureau of Health. The League is rapidly increasing in membership, for a spirit of interest in hygiene is abroad in the land. Local advisory committees have already been formed in more than two hundred cities and towns, and it is planned to prosecute the work of multiplying these branch committees until every town in the United States shall be represented in the membership. The Committee of One Hundred publishes the magazine _American Health_ as its official organ, and all American men and women who are interested in the spread of the new hygiene are invited by the Committee to correspond with its Executive Secretary, Drawer 30, New Haven, Conn. Connected with the advisory and other subcommittees, are committees of writers, editors, and newspaper men, numbering many of our most prominent penmen and pressmen, and the power of molding public opinion through this channel alone is very great. There is now being organized a Council on Co-operation, to consist of the leading officers of American religions, fraternal, learned, secret, and educational organizations; and also a Council of Research, to consist of leading investigators interested in original research along public health lines. In other words, the Committee of One Hundred has grown to a compact, well-organized, rapidly-spreading, national Army of Health. It has grown within a wonderfully short period, simply because there was a great and pressing _need_ for it. Professor William H. Welch, a member of the Committee of One Hundred, and Professor of Pathology at Johns Hopkins University, has put himself on record as saying that if the nation were to apply in practice the existing knowledge of hygiene, the nation’s death rate would be cut in two. In commenting on this statement, Irving Fisher said: