the field in terms meaningful to American political science. Especially following Lipmann's work, public opinion has become field of specialization in American Universities. The application of statistical techniques to the analysis various types of political and governmental data has been advanced by Stuart Rice, Louis Bean, Harold F. Gosnell and others. H. Dewey Anderson and Percy E. Davidson have applied the statistical technique to such widely varied fields as voting motivation, occupational mobility as it affects state- governmental operations, occupational trends upon a national and local basis. and concentration ofeconomic power and its effect on political power. In some of the Western countries"public opinion polls" or"Gallup polls'' are held. If skillfully framed and conducted, such polls have shown themselves, in Britain in America, to capable of a high degree of accuracy.