Lord Eustace Percy 's public service includes work in the Diplomatic Service, the Ministry of Health, and from 1924 to 1929, the Presidency of the Board of Education. He introduces tonight a series that aims at setting before listeners clear and comprehensive account of the machinery of government in this country. The series falls into three sections. The first will cover the. Civil Service; the second the machinery of local government, town councils, district councils, county councils, and parish councils; the third the network of voluntary service organisations that lias grown in response to needs not fully met by the official machinery.