"The Russells do not think there was much correspondence with the BBC about the Reith lectures. They are anxious about the originals of what little Einstein material there is. ... The Russells are also anxious to know about the T.S. Eliot correspondence, as they fear some is missing. They particularly have in mind a letter from Eliot in which he says that both he and his wife owe everything, including their lives, to BR."