We've found a number of books in our magic library that are believed to be used for book test routines, but can find no further information on them. The only mention here on the forums is by Dick Christian back in 2008 and he would surely know what he's talking about. Unfortunately he passed before publishing his encyclopedia on book tests etc. and is no longer around to answer questions.
Did anyone ever get his list of known hybrid/natural forcing books? He apparently had such lists and sent them to those asking.
- Stigma by Williams Forrest (Crown Publishers Inc, 1957)
- The Victors by Clement Pollock (Random House, 1956)
- A Cup of Tea for Mr. Thorgill by Storm Jameson (Harper, 1957)
Any help would be much appreciated!