1973. Letter from Demarco to Alexander Thom, ref. invitation to lecture at the RDG. Edinburgh Arts 1973.
1979. Lecture by Count Panza di Biumo (centre) on his collection at Villa Menofoglio, Varese, Italy. Edinburgh Arts 1979.
1980. Lecture by Cyril Barrett at ROSC '80 exhibition, Dublin. Work by Magdalena Abakanowicz. Edinburgh Arts 1980.
1980. Edinburgh Arts 1980 participants at Knowth, neolithic passage tombs, County Meath, Eire. Lecture on site by archaeologist George Eogan.
1978. Announcement Card. The Artist as Explorer. Lecture by Demarco at Kunsthalle Dusseldorf, Germany.