Across from Merrion Square is the National Gallery of Ireland, which was built in 1864, and contains a fine collection of paintings, numbering about five hundred, which have been presented and purchased from time to time. All of the old masters are well represented, and the Dutch school is especially strong. Attached to the gallery is the Metropolitan School of Art, which is liberally supported by the British government, and has a large number of students. Corresponding to the Art Gallery, on the opposite side of a quadrangle known as Leinster Lawn, formerly the garden of the Earl of Kildare, is the Science and Art Museum and the Museum of Natural History. Both are well arranged and full of interesting things, particularly Irish antiquities, historical relics, and examples of Irish industries. The most precious object is an iron bell shaped like an ordinary cow-bell and riveted on each side, which, it is said, St. Patrick used to carry about with him and ring to call the people together to hear mass. It is accompanied by a silver "shrine" or case for its protection, made in the year 1100 at the expense of Donald O'Laughlan, king of Ireland from 1091 to 1105. The "Annals of Ulster," written in the year 552, refer to this precious object as "The Bell of the Will," and its history is known from that date. It came into possession of the Archbishop of Armagh in 1044, and was among the relics in the cathedral there until it was brought to the museum in 1869. No one here seems to doubt that it is genuine. In the adjoining case is another "shrine," as the case or covering for sacred relics is called, that contains a tooth of St. Patrick, which, according to the tradition, was loosened and fell from his mouth on the door-sill of St. Brone's Church at Killaspugbrone in County Sligo, and can be accounted for all these years. A brooch formerly worn by the King of Tara is also shown as an example of the prehistoric work of the silversmiths of Ireland, with many other beautiful pieces of silver and gold which were dug up in the bogs.