In any logological research one is required, consciously or subconsciously, to devise and follow a set of rules for inclusion. The far outermost limits of such rules have been discussed several times in Word Ways. But the basic, starting rules have been virtually ignored. Let us choose a subject and see how the "rules for inclusion" will alter our allowable stock of words.
Beaman, Ralph G.
"Twelve-Letter Pair Pyramid Words,"
Word Ways: Vol. 6
, Article 14.
Available at: http://digitalcommons.butler.edu/wordways/vol6/iss1/14