Telephones And Telegraphs: 1902 : [and Municipal Electric Fire Alarm And Police Patrol Systems]

At head of title: Department of Commerce and Labor. Bureau of the Census. S. N. D. North, Director. Special reports The statistics cover the calendar year 1902. Collected and compiled under the supervision of W. M. Steuart. Text prepared by Thomas C. Martin with the cooperation of A. V. Abbott, as to the telephone portion, and W. Mayer, jr., as to the telegraph portion The last of a series of reports on the generation and utilization of electric current. Further reports relate to street and elec