Correspondence, invitations, and travel arrangements. Includes: Margaret Thatcher dinner, London, UK, containing a briefing book with suggested points to stress, biographical information on attendees, and summaries of political and economic issues of interest to DuPont; Union Carbide luncheon, Wilmington, Delaware; Carper breakfast fundraiser, Wilmington, Delaware; Delaware Roundtable Annual Meeting, Dover, Delaware; Johnson & Johnson meeting, New Brunswick, New Jersey; Fluor Corporation dinner, Wilmington, Delaware, containing Bechtel Corp annual report; GM executive supplier meeting, Detroit, Michigan, containing remarks by Jefferson; and Viscount E. Davignon visit and dinner, Wilmington, Delaware, containing a briefing book with biographical data on visitors, summaries of European political and economic issues, and DuPont R&D.