Desk work; signing of Mental Retardation Amendments; Lady Bird doesn't approve of LBJ's jokes; receiving line; Lady Bird goes swimming; buffet meals in Solarium during this wedding week; Johnson cook, Zephyr Wright, is gone for a family funeral; Lady Bird has hair & medical appointments; renovations in Lady Bird's bedroom; Averell Harriman party for Lynda Johnson & Chuck Robb & diplomatic corps; LBJ will meet William Randolph Hearst; news conference at State Department; LBJ swims with Earl Warren