LBJ and Lady Bird to National City Christian Church; dogs are racing on White House lawn; Air Force One to New York with guests for signing of the Immigration Act of 1965; LBJ delivers speech at ceremony; Johnsons see Erich Leinsdorf whom LBJ helped leave Nazi Germany; dinner party at the Arthur Goldberg's; protesters outside hotel on Vietnam and Dominican Republic policy; Lady Bird talks with Cardinal Spellman about LBJ Library