The Irish National Invincibles and Their Times. English Edition with Appendices and Index. London: Chatham, 1894. Pp xxiv, 591. With 8 portrait plates. Original two toned cloth, title lettered in gilt to spine. Covers with light shelf-wear, internally very good to fine. 'The Invincibles' were a radical splinter group of the Irish Republican Brotherhood, active in Dublin during the 1880s. The group hatched a plan to kill the Permanent Under Secretary at the Irish Office Thomas Henry Burke. It was Chief Secretary for Ireland Lord Frederick Cavendish's misfortune that he was walking with Burke when the assassins struck in Phoenix Park, in Dublin, at 5:30pm Saturday, May 6, 1882, in what was to become known as the Phoenix Park Murders.