Unread condition, with oxidized pages typical to cheap pulp of the era that has not been stored well--likely a back room clean out. Tight, flat, square, sharp book. Harold W. McCauley cover.
J. X. Williams is a house pseudonym, used by a number of authors, and more recently by a director of "art" films like Peep Show and Virgin Sacrifice. We found no cross reference to known authors for this work.