Lady Bird to dentist; meeting about decorating White House theater; swimming; invitation to Holiday in Dixie; signing of the Outer Space Treaty; Lady Bird mentions attendees; speeches by LBJ, Sir Patrick Dean, Arthur Goldberg and Anatoly Dobrynin; treaty is signed, receiving line and photographs; farewell party for Secretary of Commerce John Connor; note about Apollo 1 fire is handed to LBJ; LBJ leaves party; Lady Bird gives tours of second floor