Archive.org has a copy of a 1948 book entitled the Psychological Atlas that is full of weird and wonderful things from the world of 1940s psychology and beyond.
It’s got some serious psychology in there, mixed in with the paranormal, weird and curious stuff, probably reflecting the public understanding of the field at the time.
The Second World War was a critical time for psychology as many influential psychologists (like Gordon Allport and JJ Gibson) were employed to help select recruits and design better functioning equipment.
This helped significantly with psychology being taken seriously as a science, and this slightly post-war volume probably still has some of the hangovers from the pre-war years.
A fascinating read nonetheless.
Link to Psychological Atlas (via BoingBoing).
Mind Hacks 