SEARCH folder heading word(s) or phrases across all of our folder lists (via Google Advanced Search)
Your search results will not be 100% reliable. A search won't find every occurrence of a word or phrase, and zero results doesn't mean the word/phrase did not occur in some folder list(s). Many old folder lists were produced in print format, and their scanned versions won't be character/word perfect. Therefore text searching will be imperfect.
COLLECTIONS WITH FOLDER LISTS (there are many collections for which we do not have folder lists)