Henry J. PERKINSON, address: 737 East Bldg. New York University, NY, NY, 10003, phone 212 998-5045 (home) 301 Wood Lane, Edgewater Park, NJ, 08010, phone 609 387-7409. Affiliations: New York University, Professor of Educational History. Interest in Popper: applications to Educational Theory. Publications: The Possibilities of Error, Learning From Our Mistakes, Since Socrates, Knowledge , Fallibilism and Education (co-author). Queries to readers: Anyone working on applications of Popper's work to Educational Theory and Practice?