[Avoiding_Sulla]

and another..?

I think the one you're forgotten is Worlds in Collision. It was his premier book of his Interdisciplinary Synthesis series. It all started as a side discovery when he was researching for the book he didn't get around to publishing until 1960: Oedipus and Aknahton.

[Judith Anne]

Yes, that’s it, “Worlds in Collision.” Probably 35 years ago, I read them all. They’ve influenced my thinking ever since.