Lady Bird records diary; meeting with Perry Wolff about possible documentary; signing ceremony for the Nuclear Non-Proliferation Treaty; speeches by Dean Rusk, Sir Patrick Dean, Anatoly Dobrynin & LBJ; U.S. & U.S.S.R. are in talks; talks are to limit & reduce nuclear weapons & anti-missile systems; reception; LBJ meets Latin American ambassadors; Lady Bird receives International Consumers Committee; meeting about the White House China dessert plates; Lady Bird to Perle Mesta party