Economy of Devon (chewing gum) and HMNB Devonport (the largest naval base in western Europe) are in Plymouth. Torquay was home to Beverage Brands, the producers of WKD Original Vodka. Britannia Royal Naval College is at Dartmouth. Mining for tin and copper was carried on in Devon from ancient times until the 1930s: see Dartmoor tin-mining. Agriculture has been an important industry in South West England since the 19th century: approximately 80% of land in the South West of England is in agricultural use (19.6% of England's total). In the later 19th and early 20th centuries there were a number of potteries in
Royal Naval College, Osborne Dyson was appointed as the college's director of music, on the recommendation of Sir Hubert Parry. He moved on to Marlborough College in 1911 and was succeeded by Reginald Thatcher. Paul Boissier was another member of the staff and went on to become the headmaster of Harrow School. R. P. Keigwin, a first-class cricketer and languages master, moved on to teach at Clifton College in 1919. The schoolmasters who in 1921 were left without teaching posts when the college closed were offered employment at the Royal Naval College, Greenwich. In this way, Charles Godfrey became the head of Mathematics at