informative -- on the outer limits of political psychology. A good follow up to Fritz' Stern's the Politics of Cultural Despair, which covers some of the same topics.
There is another good, and far brief discussion of this material on an essay of George Mosse entitled, "The Mystical Origins of National Socialism", in Journal of History of Ideas 12 (1961), 83-96; it is reprinted in several of Mosse's collections.
No one goes further than Goodrick-Clarke, however, it developing the outer reaches of this racist theosophy -- and very clear echo of which can be found in certain radical writings in the US. This type of thinking, in other words, is not dead and buried.