national and international student co-operation must have on the great and pressing problems of reconstruction in Europe. If students are co-operating today surely there is hope for tomorrow. The NUS's founding constitution stipulated that it must operate as a non-political and non-religious student organisation as the factional differences among nations were felt to have led to the recent world conflict. The non-political stipulation was dropped in 1969. From its outset the NUS founders were also noteworthy in ensuring that women were involved at its highest levels through a constitutional requirement. Macadam was involved in the formation Confédération Internationale des Étudiants (International Confederation of Students) bringing together student bodies from the original member countries of the League of Nations, including the US, and subsequently others. The CIE inaugural conference was held in Prague in 1921. He chaired until 1929 the CIE's commission responsible for International Relations and Travel. He stepped down as the NUS President in December 1922 to serve as Honorary Organising Secretary, which became in effect their senior executive until 1929. While still at Cambridge, he was able to obtain the financing for a permanent headquarters for the NUS at Endsleigh Street, London, W.C.1.(opened in 1925). In 1927 Macadam spearheaded a successful fundraising appeal to endow the Union and place it on a sound financial footing. He was one of the original trustees of the National Union of Students and remained one until the end of his life. The main students' union building and Faculty of Engineering at King's College's Strand campus is named the Macadam Building in his honour (opened 1975). In 2004, KCLSU President Michael Champion instituted the Macadam Cup, a day of sporting excellence between medical and non-medical students at the College. The new NUS National Headquarters was named Macadam House in 2013 at 275 Gray’s Inn Road, London, WC1X 8QB. Royal Institute of International Affairs (Chatham House) He was the first Secretary and Director-General of the Royal Institute of International Affairs serving as its chief executive between 1929 and 1955 based at Chatham House, 10 St. James's Square, London, S.W.1. A London County Council plaque on Number 10 states "Here lived Three Prime Ministers WILLIAM PITT Earl of Chatham 1708–1778 Edward Geoffrey Stanley EARL OF DERBY 1799–1869 William Ewart GLADSTONE 1809–1898". The Grade I listed building designed by Henry Flitcroft in 1730s was named on its gifting to the Institute after the first of these