New York: New York Labor News Company, 1907. Hardcover. 116p., hardbound in red cloth with spine titling and cover emblem gilt, series format. Mild edgewear, spine slightly faded, old ownership signature and several small stains within, a good copy. Mysteries of the People, title no. 2 of a 19-vol set (as discussed in introduction to first volume in series, pp.iv-v).