Acknowledgment is made for permission to quote from the following copyrighted material:
James Bryce: The American Commonwealth, Vol. I & II. Copyright 1893 by Macmillan and Co.; 1910 and 1914 by The Macmillan Company; 1920 by the Rt. Hon. Viscount Bryce. Used by permission of The Macmillan Company.
Bertrand Russell: Philosophy and Politics ( Cambridge University Press, England). Used by permission of The Macmillan Company.
James Bryce: Modern Democracies, Vol. I & II. Copyright 1921 by The Macmillan Company and used with their permission.
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Publication information: Book title: The Pollsters:Public Opinion, Politics and Democratic Leadership. Contributors: Linday Rogers - Author. Publisher: A. A. Knopf. Place of publication: New York. Publication year: 1949. Page number: Not available.
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