The system of higher education in Great Britain is complex and consists of Universities, Polytechnics, Colleges of Art and other institutions. Universities are the main centres of higher education and there are 45 universities in Britain. They train doctors and lawyers, physicists and chemists, economists and linguists. The oldest and most famous universities of GB are Cambridge and Oxford. The largest one is the University of London. The admission to universities is by selection and examination. The studies are paid, but about two thirds of students get grants. There are three terms in the academic year with the vacations. A course of studies in universities lasts from three to four years. The first degree which is awarded on the completion of the course of studies is that of Bachelor of Science or Art Master’s Degree is awarded after a further year of studies and research. The highest degree is that of Doctor of Philosophy.