Staffordshire University is a university with its main campus based in the city of Stoke-on-Trent, and with other campuses in Stafford, Lichfield and Shrewsbury. In 1901 industrialist Alfred Bolton acquired a 2-acre (8,100 m) site on what is now College Road and in 1906 mining classes began there. By 1907 teaching of pottery classes followed, being transferred from Tunstall into temporary buildings. In 1914 the building now known as the Cadman Building was officially opened as the Central School of Science and Technology by Rt. Hon J A Pease MP, President of the Board of Education. A frieze over the entrance depicts potters and miners. In 1915 a department was established for the commercial production of Seger cones (used to measure and control the temperatures of ceramic furnaces) based upon research completed by the principal, Dr Joseph Mellor. Grants from the Carnegie UK Trust, the second in 1924, were used to develop the ceramics library and in 1926 the name of the institution was changed to North Staffordshire Technical College. By 1931 extensions to the Cadman Building ran along Station Road and housed the Mining Department.