What has the author John Barclay Hope Simpson written?

There is no known author named John Barclay Hope Simpson. It is possible that you have misremembered the name or there is a typo.

To help me find the author you are looking for, could you please provide:

* Any other details about the author: their nationality, approximate time period they lived in, or any other books they may have written.

* The title of a book they wrote: If you know the title of a book by this author, that would be extremely helpful.

With more information, I can hopefully help you find the author you are looking for.