Again AAAS

As regular readers know, I like to find parallels between alternative future histories or other fictional futures:

They Shall Have Stars is the introductory volume of James Blish's Cities In Flight future history;

Intervention is a "vinculum" between Julian May's Pliocene Exile and her Galactic Milieu;

Poul Anderson's The Byworlder is a one-off novel.

These three works share the AAAS. For the Blish and Anderson works, see the link.

"'...the American Association for the Advancement of Science did finally admit the Parapsychological Association to membership.'"
-Julian May, Intervention (London, 1988), 15, pp. 114-115.

Since Intervention, Chapter 15, is set in 1972 whereas the novel is copyright Julian May, 1987, it should follow that the Parapsychological Association indeed exists and is in the AAAS. The Association's website confirms that the organization was established in 1957 and has been an affiliated to the AAAS since 1969 so there was a gap.