Thanks for the information Anielka, some of it was new to me and it's certainly though-provoking, though I'm still not convinced of his theory.

]I am inspired to try and get a copy of the book.
It's remotely possible the Perth state library has one. If not, while googling I saw one 2nd hand copy in a bookshop in Qld. About $30, I think. There is a lot of JA's genealogy in his book, though I doubt there's any that you don't already have.
Didn't keep the link but you can probably find it again.

In defence of the author, I'm not sure that he was tying JA in solely for publicity, it struck me rather that he simply had an eclectic mind and a broad range of interests.