""An Exposure of the Spy System Pursued in Glasgow, During the Years 1816-17-20: With Copies of the Original Letters of Andrew Hardie"" is a historical book written by Andrew Hardie and first published in 1833. The book details the spy system that was in place in Glasgow during the years 1816-17-20, which was a time of political unrest and social upheaval in Scotland. Hardie, who was a Scottish radical and one of the leaders of the Scottish Insurrection...