You're welcome!

It's still an interesting theory, even if it doesn't stand up. And I imagine his book might have gone down quite well with a lot of Gaels back then, as a pleasant change from outsiders speaking contemptuously about their language and culture.

(And if you every have occasion to spend some dreich days in a library that keeps old newspapers, I can highly recommend the 19th century issues of The Illustrated London News - edited by Charles Mackay 1852-59).