""A Dissertation Upon Parties"" is a political treatise written by Henry St. John, also known as Viscount Bolingbroke, in the form of several letters addressed to Caleb D'Anvers. The work discusses the nature and effects of political parties in England during the early 18th century, and argues that parties are detrimental to the common good. The book also includes a biography of the author, written by himself. Bolingbroke was a prominent politician...