With the sudden demand for more papers came rapid progress in the mechanical department of the business. Double cylinder presses capable of printing twenty thousand papers an hour were soon perfected, folding machines came into general use, stereotyping was employed to save time, labor, and wear of type, white paper was made from wood pulp at greatly reduced cost, and the progress in all departments of the business was by leaps and bounds until every demand was more than supplied and new expectations created. From that time forward invention kept pace with every increase of circulation. As soon as one press was found inadequate or imperfect, the manufacturers were ready to set up a faster and better one. As competition reduced the selling price of the newspaper, invention supplied every demand for the material of production at a reduced rate. The impetus to circulation imparted by the civil war created a new reading public, which rapidly grew to include every person who could read and a demand for all the news of the world once created would not be denied. The collection of news was quickly reduced to a system and perfected, until to-day no event of importance occurring in any part of the world is omitted from the daily record of current history. The great cost of collecting news at the front and transmitting by telegraph full reports of battles during the civil war caused certain newspapers in New York city to enter into an arrangement to receive reports in duplicate and share expenses. Then the cost was further reduced by selling the news to papers in other cities. That was the beginning of the Associated Press, a plan of newspaper combination that ultimately made the buying and selling of news a great commercial enterprise. Within a few years after the close of the war this system had been developed until practically all the daily newspapers of the country were interested in it or subscribers to the news collected and sold. This feature of the business continued to grow until agencies for the collection and transmission of news were established throughout the world. Similar associations were formed in England and on the continent of Europe, and news exchanged with the American organization. In the United States the business was developed until newspapers of particular sections of the country and even those of single States formed associations on the principle of mutual benefit for the collection of full reports of all important events within the territory where they circulated. At the present time the system has been perfected until the great news agencies of the country receive reports of important events from every quarter of the globe with a degree of promptness and accuracy rendered possible only by thoroughness of organization and the constant exercise of the keenest intelligence. The collection of all the news of the world would not be possible under any other plan, but the American newspapers, having