intolerable. At the age of 54, he submitted his resignation and, after a brief bout with depression, accepted a professorship in library science at Banaras Hindu University in Varanasi, his last formal academic position, in August 1945. There, he catalogued the university's collection; by the time he left four years later, he had classified over 100,000 items personally. Ranganathan headed the Indian Library Association from 1944 to 1953, but was never a particularly adept administrator, and left amid controversy when the Delhi Public Library chose to use the Dewey Decimal Classification system instead of his own Colon Classification. He held an honorary professorship at Delhi University from 1949 to 1955 and helped build that institution's library science programs with S. Dasgupta, a former student of his. While at Delhi, Ranganathan drafted a comprehensive 30-year plan for the development of an advanced library system for the whole of India. In 1951, Ranganathan released an album on Folkways Records entitled, Readings from the Ramayana: In Sanskrit Bhagavad Gita. Ranganathan briefly moved to Zurich, Switzerland, from 1955 to 1957, when his son married a European woman; the unorthodox relationship did not sit well with Ranganathan, although his time in Zurich allowed him to expand his contacts within the European library community, where he gained a significant following. However, he soon returned to India and settled in the city of Bangalore, where he spent the rest of his life. While in Zurich, though, he endowed a professorship at Madras University in honour of his wife of thirty years, largely as an ironic gesture in retaliation for the persecution he suffered for many years at the hands of that university's administration. Ranganathan's final major achievement was the establishment of the Documentation Research and Training Centre as a department and research centre in the Indian Statistical Institute in Bangalore in 1962, where he served as honorary director for five years. In 1965, the Indian government honoured him for his contributions to the field with a rare title of "National Research Professor." In the final years of his life, Ranganathan suffered from ill health and was largely confined to his bed. On 27 September 1972, he finally succumbed to complications from bronchitis. Upon the 1992 centenary of his birth, several biographical volumes and collections of essays on Ranganathan's influence were published in his honour. Ranganathan's autobiography, published serially during his life, is titled A Librarian Looks Back.