A new survey of that part of the Coast of Africa comprised between Cape Verga and Cape Formoso including chiefly the Windward and Gold Coasts ... digested from the draughts, observations and memoirs of ... Robert Norris, etc.
Norris, Robert.
Dalzel, Archibald.
Horsely,.
London :  R. Sayer, 
1789.
Insets: Entrance of River Serra Leone ... A Plan of the Cove at Bassa... Lagos and its Channels by Captn. Horsely ... The Course of Gato or Regio Creek with the entrance of River Benin, by ... Arcd. Dalzel.