The magnetic telegraph is the most recent discovery, and of the most importance, in its services to the daily newspaper press. The circulation of leading American daily newspapers has more than trebled since the invention of the telegraph. The free public schools of America have done much to promote the growth of printing. If the State did not offer free books and free education, a large portion of the people would grow up in ignorance. Every scholar in a public school [p047] becomes for life a reader, and to some extent, a purchaser of books. The value of the school-books manufactured in the United States annually, has been estimated at fifteen million dollars. Of Webster’s Spelling-Book alone, thirty-five million copies have been sold, and a million copies are printed every year. If printing were deprived of the support it receives from public schools, there would at once follow a noticeable decrease in the production of printed matter, and a corresponding decrease in the number of readers and book-buyers. To foster the tastes which have been cultivated by public schools and newspapers, some States have established public libraries in every school district. There are, also, a great many valuable libraries which have been established by voluntary association or by individual bequest. These libraries create books as well as readers. Railroads, steamboats and package expresses are aids of as great importance. The New-York daily newspaper, printed early in the morning, is sold within a radius of three hundred miles before sunset of the same day. Newspapers now find hundreds of eager purchasers in places where they would not have found one in the days of stage-coaches. The benefits of cheap and quick transportation are also favorable to the sale of books. A bookseller’s package, weighing one hundred pounds, will be carried from New York to St. Louis, on the Mississippi, within sixty-five hours, at an average expense of three dollars. When there was no railroad from St. Louis to San Francisco, the overland charges on one hundred pounds of books were one hundred dollars. The long delays and great expenses of stage-coach transportation would operate almost as a prohibition to the sale of periodicals and new books. The greatest legislative aid that printing has received is through the facilities which are furnished by post-offices and mails. They create readers. Weekly newspapers are now sent, for one year, for twenty cents, to subscribers in the most remote corner of the Union. Books are sent three thousand miles at the rate of one cent per ounce. The improvement [p048] of postal facilities has increased the number of readers and purchasers of newspapers to an amount unforeseen by the most sanguine projector.