This isn't a review, but Mrs Saucepan came across a review of a book called
The Science of Middle Earth by Henry Gee in the
Fortean Times. I couldn't find that review, but here is another from Popular Science:
The Science of Middle Earth
It looks interesting, mainly because it addresses many of the topics that come up frequently here at the Downs. Apparently, it even has sections on Orcish reproduction and Balrog's wings.
I am thinking of ordering a copy. Has anyone else read it? If so, is it worth getting?