MALCOLM, D.A., "Quo usque tamen?" CQ XXIX 1979
219-220. In brief, the article argues that Cicero uses this complete
phrase only
once, in In Catilinam I, and probably was mockingly quoting
a characteristic phrase of Catiline.
PHILLIPS, J.J. "Attiucs and the publication of
Cicero's works", CW LXXIX 1986.
SKINNER, M. "The Contents of Caelius' pyxis",
CW LXXV 1982 243-245. In brief, the article argues that the pyxis
contained resin used by prostitutes for the removal of pubic hair.