An exhaustive treatment of the -- ehem -- Good Folk of the British Isles.
A lot of redundancies because all sorts of creatures reappeared, slightly different, under different names, sometimes in very limited locales, or even the proper name of a single being. (Sometimes very slightly different names -- not necessarily related to how similar they are in other respects.)
Covers a lot of folklore about the devils and death, as well, because of the strong connection between them and the fairies. (Grafted trees were connected with fairies because they were called "ymp trees.") Includes a lot of legends and some pure fairy tales, and some entries on fairy themes, such as thefts and protection.