Date (happened)
c. 0 (probable)
"here is a man who heard me years ago", told in Trust Imagination (nid 1952)
Neville hunted down two out-of-print books, the Zermatt Dialogues and the Oberland Dialogues, at Acres of Books in Long Beach - where old Mr. Smith told him to look under 'Switzerland' rather than philosophy - and gave them to the psychologist, who Neville doubts ever really read them.