 This bell was cast by Joseph Hatch in 1635, and is struck at 8 am and 9 pm every day to announce the opening and closing of the cathedral, and also occasionally for services as a Sanctus bell.The cathedral also has custody of the bell of HMS "Canterbury", a World War I-era light cruiser, hung near the Buffs Chapel in the southwest transept.The cathedral library has a collection of about 30,000 books and pamphlets printed before the 20th century and about 20,000 later books and serials.