That, Peter, is why I started this thread.
Professor Lewis was not a parochial ostrich as he was an academician who was sincerely interested in people.
He understood very well that one culture could affect another.
Have you read his Space Trilogy? His background in linguistics and archeology are evident.
That is why I think that he probably met Father Chardin.
I have done a bit of looking about (and I'm trying to recall where the copies of the first two volumes of Lewis' collected letters) and I have found no indication that Lewis met Fr. Teilhard de Chardin or had any communication with him. Why would he have, one wonders? They were in different fields entirely Fr. T d C spent little time in England and from what I've found it was neither at Oxford or Cambridge. He was a geologist and paleontologist as well as an R.C. priest. His work took him to far parts of the world for the paleontology digs and he died in New York City in 1955.
Lewis was a scholar and professor in England and did not travel much. I have read the "Space Trilogy" many times. Linguistics was part of his work, after all, but what level of knowledge of archeology to you see in the books that would indicate some connection to Teilhard please? Have you read anything of Teilhard's work?
May I ask what other works of Lewis you have read? While I would not count myself as a scholar of Lewis, I am familiar with much of his life and work and I have a number of books by/about him on the shelves.
As to the reference to St. Peter in my sig I can answer that as an Anglican just as Lewis was. The focus of the passage is on the words of Our Lord, the instructions to "feed my sheep" that is to care for the people, those who trust and follow Him. Peter happened to be the one to whom he was speaking. It is not in any way some kind of subtle reference to the RCC or the Bishop of Rome or anything like that. Why would Lewis have taken it on himself to comment in such a way about something that wasn't happening in his Church?