1975. Letter to Demarco from Lucy R. Lippard, ref. Edinburgh Arts.

24 July 1975. Letter to Demarco from critic and historian Lucy R. Lippard, with reference to her text on Edinburgh Arts (published in 1975 as an introduction to the Edinburgh Arts Festival Catalogue 1975:  To Callanish from Hagar Qim, and in 1976 as an introduction to the RDG's Edinburgh Arts 1976 publication: A Journey From Hagar Qim to the Ring of Brodgar).