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Submitted on: 28 July 2004.
Revised on: 30 October 2004.
Accepted on: 20 November 2004.
___________________HUNTINGTON LIBRARY QUARTERLY---UNIV PENNSYLVANIA PRESS
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Submitted on: 28 July 2004.
Revised on: 27 August 2004.
Accepted on: 29 September 2004.
___________________HUNTINGTON LIBRARY QUARTERLY---UNIV PENNSYLVANIA PRESS
Submitted on: 03 February 2007.
Revised on: 24 April 2007.
Accepted on: 08 May 2007.
___________________HUNTINGTON LIBRARY QUARTERLY---UNIV PENNSYLVANIA PRESS