However, one I have that is a ripping yarn, is "The Popular Romances of the West of England" which can be found in electronic form here: http://www.sacred-texts.com/neu/eng/prwe/
Ooh! There's also an electronic versio of "Early British Trackways, Moats, Mounds, Camps and Sites" by Alfred Watkins (http://www.sacred-texts.com/neu/eng/ebt/index.htm)... I'd best get me printer warmed up! ;o)