Bullard became a consultant of Shell from the beginning of 1956. There is an extensive correspondence regarding the technical problems upon which he was consulted and his visits to research laboratories in Holland and the United States. Bullard's advice was also sought on science education questions including the placing of Shell Commonwealth Scholars in British Universities, and in this connection will be found Bullard's comments on the Cavendish Laboratory and Nuclear Physics at Cambridge. Bullard interested himself in computer developments within the Shell organisation and corresponded on this subject with Lord Rothschild, a director, and Shell personnel. The correspondence is arranged in a chronological sequence.