| Description | Copy letter from De Beer to Eric Robinson, Sep 1956, regarding [James] Watt's letters.
Letters dated 1960-1964 between De Beer, Dag Hammarskjld ,Therese Lavenden, J M C Lyson, and Niall MacDermot, regarding De Beer's research for The Sciences..., and being supplied with copies.
Letters dated 1970 between De Beer and the UNESCO Features Division regarding the republication of The Sciences..., enclosing a copy contract. |