We then have Shadwell's famous comedy, The Squire of Alsatia (1688), with its well-known vocabulary of Alsatian jargon and slang, its scenes in Whitefriars, the locus classicus, a veritable mine of information.

ii. 17 is the locus classicus.

[Footnote 128: It would seem, as Gibbon says of the Empress Theodora, that this passage could be left "veiled in the obscurity of a learned language"; but it may be noted that the locus classicus for the play on the word is the incident of the Megarian "mystery pigs" in Aristophanes' Acharnians, 728 ff.