From 1973 , he was a Vice-President of the Royal Institution .
He was then Permanent Secretary at the Ministry of Aviation in 1966 , then at the Ministry of Technology until 1970 , retiring from the Civil Service in 1971 .
From 1973 , Permanent Secretary was a Permanent Secretary of the Royal Institution .
He was then Permanent Secretary at the Ministry of Aviation in 1966 , then at the Ministry of Technology until 1970 , retiring from the Civil Service in 1971 .