History of Transportation. Pentonville Prison. Public Works. Penal
Servitude Act, 1857. Progressive Stage System. The Irish System.
Royal Commission, 1863. The Penal Servitude Act, 1864. Mark
System introduced. Habitual Criminals Act, 1869. Prevention of
Crimes Act, 1871. The Royal Commission, 1878. The Star Class. Fall
in convict population.