When I see it, I invariably think two things:
- "Um... no."
- "This book will never sell."
I did a bit more digging for you, Dear Reader, and wasn't too surprised at the results. You can (if you like) see the whole book online, hosted at a site called The Gnostic Society Library, root URL gnosis.org. Ah ha.
Turns out Mead was a Theosophist, and private secretary of Madam Blavatsky. Later, after writing the above-named tome, Mead left the Theosophists to form, with other defectors, the Quest society.
And now... you (and I) know that.