Telegraph. Operating data from monthly reports of telegraph carriers, compilations, subject to revision, from reports of revenues and expenses of telegraph, cable, and radiotelegraph carriers, each having annual operating revenues of $50,000 or more, June 1937 and 1936 [and 6 months ended with June 1937 and 1936, with Summary of monthly reports of large telephone carriers relative to available data concerning telegraph operations, compilations, subject to revision, from reports of revenues of 26 Bell System carriers, June 1937 and 1936; prepared in] Accounting, Statistical, and Tariff Dept.

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