Stonyhurst was also home to "philosopher gentlemen" studying BA courses under the London Matriculation Examination system. Their numbers began to fall after 1894 and the department was closed in 1916. Libraries and collections Libraries Stonyhurst College has four main libraries: the Arundell, the Bay, the Square and the More (dedicated to Saint Thomas More). The More Library is the main library for students while the 'House Libraries' (the Arundell, the Bay, and the Square) contain many artefacts from the Society of Jesus and English Catholicism. The Arundell Library, presented in 1837 by Everard, 11th Baron Arundell of Wardour, is the most significant; it is not only a country-house library from Wardour Castle but also has a notable collection of 250 incunabula, medieval manuscripts and volumes of Jacobite interest, signal among which is Mary Tudor's Book of Hours, which it is believed was given by Mary, Queen of Scots to her chaplain on the scaffold. The manuscript Le Livre de Seyntz Medicines was written in 1354 by Henry, Duke of Lancaster. To these were added the archives of the English Province of the Society of Jesus, which include 16th-century manuscript verses by St Robert Southwell SJ, the letters of St Edmund Campion SJ (1540–81) and holographs of the 19th-century poet Gerard Manley Hopkins. The Arundell Library has a copy of the Chronicles of Jean Froissart, captured at the Battle of Agincourt in 1415, and held the 7th-century Stonyhurst Gospel of St John before it was loaned to the British Library, as well as a First Folio of Shakespeare. Collections Among those collections kept away from public view are numerous blood-soaked garments from Jesuits martyred in Japan, the skull of Cardinal Morton, ropes used to quarter St Edmund Campion SJ, hair of St Francis Xavier SJ, an enormous solid silver jewel-encrusted monstrance, the Wintour vestments, a cope made for Henry VII, and a thorn said to be from the crown of thorns placed upon Jesus' head at the crucifixion. The school owns paintings, including a portrait of Tsar Nicholas I of Russia and another of the Jesuit Henry Garnet. In the Stuart Parlour are portraits of Jacobites including James Francis Edward Stuart, and his sons Charles Edward Stuart and Henry Benedict Stuart. There are also several original engravings by Rembrandt and Dürer, such as the 'Greater Passion' and the 'Car of Maximillian'. Observatory The school has a functioning observatory which was built