Most of the material in this Section is in the form of drafts and notes for published workd. The drafts are sometimes accompanied by correspondence and background material. In addition there are a number of entries for unpublished work, e.g an early 1928 paper (G.1), drafts of chapters of a book on optics, on which Bullard was working in the 1930s in collaboration with P.B Moon (G.2-G.18), and a report on heat flow through the ocean floor written with A.E Maxwell at La Jolla in 1949 (G.25)

The following items also contain or refer to writings by Bullard which are not listed in the Bibliography: G.19, G.27, G.31-33, G.38-39, G.68-76, G.80, G.91, G.106-110