Older County Histories: Sussex

James Dallaway and Edmund Cartwright, A History of the Western Division of the County of Sussex including the Rapes of Chichester, Arundel, and Bramber, with the City and Diocese of Chichester (1815-1832)
  A History of the Western Division of the County of Sussex including the Rapes of Chichester, Arundel, and Bramber, with the City and Diocese of Chichester. Volume 1
  The parochial topography of the Rape of Bramber, in the Western Division of the County of Sussex. Volume 2, part 2.
Thomas Walker Horsfield, The History and Antiquities of the County of Sussex (1835)
  Volume 1
Mark Antony Lower, A Compendious History of Sussex, Topographical, Archaeological & Anecdotical (1870)
  Volume 1
  Volume 2

James Dallaway and Edmund Cartwright
A History of the Western Division of the County of Sussex including the Rapes of Chichester, Arundel, and Bramber, with the City and Diocese of Chichester
(1815-1832)

James Dallaway
A History of the Western Division of the County of Sussex including the Rapes of Chichester, Arundel, and Bramber, with the City and Diocese of Chichester. Volume 1 (1815) [indexed]
[Available at: Google Books [Hints and tips]; HathiTrust.]

Edmund Cartwright
The parochial topography of the Rape of Bramber, in the Western Division of the County of Sussex. Volume 2, part 2. (1830) [indexed]
[Text at HathiTrust.]

Thomas Walker Horsfield
The History and Antiquities of the County of Sussex
(1835)

Volume 1 (1835)
[Available at: Google Books [Hints and tips].]

Mark Antony Lower
A Compendious History of Sussex, Topographical, Archaeological & Anecdotical
(1870)

Volume 1 (1870)
[Text at Internet Archive - Text Archive:  1 ;  2 ;  3 ;  4 ;  5 .]

Volume 2 (1870)
[Text at Google Books [Hints and tips]; Internet Archive - Text Archive:  1 ;  2 ;  3 ;  4 ;  5 ;  6 .]