d'Ulm is organized around a central courtyard, the Cour aux Ernests. Another courtyard south of this one, the Cour Pasteur, separates the school from the apartment buildings of the rue Claude-Bernard. These buildings house the administrative functions of the school, and some of its literary departments (philosophy, literature, classics and archeology), its mathematics and computer science departments, as well as its main human sciences library. The site's monument aux morts, which was inaugurated in 1923 and stands as a reminder of the normaliens who died in the First World War, is a work by Paul Landowski. Several auxiliary buildings surround this main campus in adjacent streets. The closest one, opposite the main entrance, at 46 rue d'Ulm, houses the school's biology department and laboratories as well as a part of its student residences. The seat of the school's physics and chemistry departments, inaugurated in 1936 by Léon Blum and Albert Lebrun, lies north of the school on rue Lhomond, while further up the rue d'Ulm its number 29 houses secondary libraries and the school's department of cognitive sciences. ENS has a second campus on Boulevard Jourdan (previously the women's college), in the 14th arrondissement of Paris, which is home to the school's research department of social sciences, law, economics and geography, as well as further student residences. The site has been undergoing major reconstruction since 2015. In 2017, President Francois Hollande inaugurated a new building on site, which is home to the ENS economics department, the school's social science library, and the Paris School of Economics, an ENS project. The school has a secondary site in the suburb of Montrouge, which houses some of its laboratories alongside those of Paris Descartes University. It features green areas and sporting facilities as well as some 200 student rooms. A fourth site in the town of Foljuif, south of Paris, hosts some of the school's biology laboratories. Recruitment The school is very small in student numbers. Its core of students, who are called normaliens, are selected via a competitive exam called a concours (baccalaureate + 2 years) after a preparatory class. Two hundred normaliens are thus recruited every year, half of them in the sciences and the same number in the humanities, and receive a monthly salary (around €1,350/month in 2018), and in exchange they sign a ten-year contract to work for the state. Although it is seldom applied in practice, this exclusivity