The book is heavily annotated with this comment on the front free endpaper: "If one makes a careful study of these faces it dawns on one what remarkable likenesses there are in the abbreviated symbols used by the rock painters!" This is followed by sketches of the faces.

Secured with a grommet to page 7 is a 3pp (on two pages) letter to Battiss dated 24/8/1945 from D. F. Bleek who wrote the introduction.