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 Order of Diriosauria: in Carnegie Museum: 84 feet in length; found by the Carnegie Expedition under John Bell Hatcher, in Jurassic beds, Sheep Creek Basin, Wyoming, in 1900. The only complete specimen ever found.—A replica is in the British Museum.

eminent artists who have lived in the city are John W. Alexander, Charles S. Beinhart, A. G. Beinhart, George Hetzel, William, Alfred and Bryan Wall, Clarence Johns, David Blythe and others.

The new institute building, usually so called, is an Italian Renaissance structure covering four acres, and containing the Library, the Museum, the Fine Arts galleries, and the Hall of Music. The Technical Schools have another location. The museum has over 100,000 square feet of floor space on the first, second and third stories; and a special library which takes up one end of the great central court. In the basement are rooms devoted to the curator's work, and the preparation of specimens. The lecture hall seating between six and seven hundred people opens from the museum section; and here the Academy of Science and Art holds meetings, and provides lectures which are free to the public. At present there are in the museum over 1,300,000 objects on exhibition. The aim is to not only illustrate and interest, but to educate the masses in matters of fauna and flora, geology and mineralogy. Research and science are furthered by the systematic collections in its library.

In the field of music, the Pittsburgh Orchestra has achieved national distinction—going back to the earlier clays when Frederic Archer was its first conductor. Mr. Archer also played the magnificent organ for many years. When he died Edwin H. Lemare became organist; while the directorship was taken up by Victor Herbert. Under Herbert the orchestra became famous as one of the leading musical institutions of the country; and under Emil Paur, the present conductor, whose reputation is international, it has reached a still higher level. The concerts are always well attended, although they are not free. A