The main business section covers the V-shaped space between the two rivers--known as the Point--and extends into the streets further back. Still beyond are heights upon which are many beautiful parks, fine residences, and splendid public buildings, including the Carnegie Museum, Library, and Technical Schools, and the buildings of Pittsburgh University. Though the population of the "Steel City" was at first mainly Scotch-Irish, it now includes citizens from almost every nation in Europe. The workmen in its factories are of at least thirty nationalities. Side by side stand English, Germans, Welsh, Irish, Scotch, Negroes, Jews, Italians, Syrians, Swedes, Greeks, Slavs, Poles, and Hungarians. [Illustration: WOOD STREET AT SIXTH AVENUE IN 1915] In one section of the city there is a distinct German center, whose inhabitants speak German and have German newspapers. Another section has received the name of Little Italy because of the number of Italians who have come there to live. Six papers are published for these people in their own tongue. In Little Italy are many of the fruit stands and market places which in this country seem to furnish a favorite employment for the sons of Italy. In still another section, which is called the Ghetto, live the Jews, whose conversation is largely carried on in Yiddish, and whose newspapers are printed in that language. All of these foreign-born people have adopted the dress of American citizens, and their descendants will soon become Americanized in manners and language. To-day their foreign ways make them the more interesting. But the laborers are by no means the only inhabitants of Pittsburgh. There are many wealthy residents, whose palatial homes, built beyond the reach of the soot and smoke, far away from the noises of the great business thoroughfares, are in great contrast to the workmen's simple homes near the furnaces. [Illustration: A FOREIGN QUARTER] Pittsburgh can boast of many great men. It is the home of Andrew Carnegie, whose reputation for wealth and benevolence is world wide. He it was who conceived the idea of founding free libraries in different cities, they in turn to support these libraries by giving an annual sum for that purpose. His first offer was to his own city. In 1881 he proposed to give Pittsburgh $250,000 for a free public library if the city would set apart $15,000 each year for its care. The offer was refused, and the library was given to Allegheny instead. Later Mr. Carnegie gave Pittsburgh an Institute and Library combined, for the support of which the city gives $200,000 each year. The Carnegie Institute is a massive and beautiful building in Schenley Park. It covers 5 acres of land and is filled with treasures of art and literature. To-day there are nine Carnegie libraries in Pittsburgh, containing over 360,000 volumes. [Illustration: AN INCLINED PLANE]