Nynex and Bell Atlantic reach accord on merger; links 36 million customers.

Tells that the Bell Atlantic Corp. and the Nynex Corp. have agreed to merge, ending a prolonged and public courtship. One of the largest corporate mergers in United States history; The merger to create the nation's largest local-telephone company; Statistics on each company; The union's opposition to the deal. INSET: Culture clash in the making? (the companies' top executives).