The Nicolson Institute (Gaelic: Sgoil MhicNeacail) in Stornoway, is the largest school in the Western Isles, Scotland. The Nicolson is the only six-year secondary school in Lewis. With the Sir E. Scott School in Harris, they provide education up to Advanced Higher level. The student population is around 1000. The school has Gaelic speaking pupils, although these are in the minority. There are five houses, named after five significant former rectors: Addison, Forbes, Gibson, Macrae and Sutherland. Addison contains only pupils who claim to be fluent in Gaelic.