Dear Ellen:

        Your "publisher" is mistaken.  Vol. 51 has been out for some time
now.  We received 51:1/2 on 6 March 2000, and 51:3/4 on 18 July.

Steve Perisho
Historical Studies-Social Science Library
Institute for Advanced Study
Einstein Drive
Princeton, New Jersey  08540
United States of America

Tel.:  609 734 8378; Fax:  609 951 4515
E-mail:  sperisho@ias.edu