Thanks - I've read the first one and the second will be pretty difficult to find, I guess. I started out with John Michell, Guy Underwood and Lethbridge in the late '60's - that's where I came in. I can dowse but not as well as I can build in stone. It's perhaps my ability to intuit the landscape that has allowed me to unveil so many lost sites. I'm still surprised at people's reactions to the newly found sites though and confirms my inherent misanthropy!