Page:EB1922 - Volume 32.djvu/731

Rh This would be written by the receiving operator as follows:—

The President of the United States will address Congress this afternoon on the Philippine Question.

Many other schemes are used to save time and cost.



H. H. Harrison, The Historical Basis of Modern Printing Telegraphy (1915); A. C. Booth, Machine Telegraphy (1914); H. H. Harrison, The Story of the Keyboard

Perforators (1917); Maj. O'Meara, The Various Systems of Multiple Telegraphy (1911); J. H. Bell, “Printing Telegraph Systems,” American I. E. E. (Feb. 1920); H. H. Harrison, “The Principles of Modern Printing Telegraphy,” ''Inst. E. E.'' (1915); D. Murray, “Press-the-Button-Telegraphy,” Telegraph and Telephone Journal (Nov. 1914-July 1915); E. H. Colpitts and O. B. Blackwell, “Carrier Current Telephony and Telegraphy,” American I. E. E. (Feb. 1921).

—In the case of countries the boundaries of which have undergone change, the figures for each year represent the number of miles of telegraph wire within the boundaries of that year.

Telegraph wire used exclusively for railroad operation and not open to public use has been excluded wherever possible.