'The Pleistocene occupation of Australia', 9th Congress of the Union Internationale des Sciences Prehistoriques et Protohistoriques, 1975-1976 Unit ID: 18 Date: 1975/1976
'The spirit of which age?', SITES lecture, Museum of Sydney on the site of the first Government House, 1992-1995 Unit ID: 9 Date: 1992/1995