You are, of course, correct about Erskine - I only heard the name and wrote it phonetically, and didn't correct my List when I ordered the book, obviously. Typo corrected now.

I've seen snippets from the film, which was what the APA paper was discussing, and it looks rather cheerful fun.

WTF at the 1948 edition?? That's nothing like what happens in the actual book! Brilliant! Mind you, that's pretty standard for 1940s covers...