Correspondence between NRG directors and with external individuals and organisations, with related papers. Nicholson is the principal correspondent. Earthcare Group and Earthcare Club correspondence (Feb 1995-Sep 1996), and some earlier correspondence, is included.

A wide range of topics are covered, as well as general internal business. Other principal correspondents include M.E.D. Poore, B.W. Walker and Sir Martin Holdgate.