82 



BELL SYSTEM TECHNICAL JOURNAL 



Switching Systems 



Machine Switching Telephone System for Large Metropolitan E. B. Craft 



Areas. L. F. Morehouse 



Bell System Technical Journal, Vol. 2, Apr. 1923, pages H. P. Charlesworth 



53-89. 

 Ameiican Institute of Electrical Engineers, Transac- 

 tions, Vol. 42, Feb. 1923, pages 187-201. 

 Machine Switching Private Branch Exchanges and Their \V. H. Harrison 

 Application to Railroad Service. 

 In American Railway Association, Telegraph and Tele- 

 phone Section, Papers, 1924, pages 418-440. 

 Panel Type Machine Switching System in the United States. H. P. Clausen 

 Electrical Communication, Vol. 4, Oct. 1925, pages 

 91-97. 

 Telephone Switchboard — ^Fifty Years of History. 



Bell Telephone Quarterly, Vol. 7, July 1928, pages 

 149-165. 



Buildings 



Housing the Bell System. 



Bell Telephone Quarterly, \^ol. 5, July 1926, pages 



131-139. 

 Post Office Electrical Engineers' Journal, \'ol. 19, Jan. 

 1927, pages 325-334. 



F. B. Jewett 



H. P. Charlesworth 



Toll Service 



Short Distance Toll Service 



Tandem System of Handling Short-Haul Toll Calls. 



American Institute of Electrical Engineers, Transac- 

 tions, Jan. 1928, pages 9-20. 



Long Distance Service 

 General 



Engineering the Long Lines. 



Bell Telephone Quarterly, Vol. 2, Jan. 1923, pages 18-31. 

 Advance Planning of the Telephone Toll Plant. 



Ameiican Institute of Electrical Engineers, Transac- 

 tions, Vol. 47, Jan. 1928, pages 1-8. 



Telephone Toll Lines 



Telephone Transmission Over Long Distances. 



Electrical Communication, Vol. 2, Oct. 1923, pages 



81-94. 

 American Institute of Electrical Engineers, Transac- 

 tions, Vol. 42, Oct. 1923, pages 984-995. 

 Some Very Long Telephone Circuits of the Bell System. 



Bell System Technical Journal, Vol. 3, July 1924, pages 

 495-507. 

 Transmission Features of Transcontinental Telephony. 



American Institute of Electrical Engineers, Transac- 

 tions, Vol. 45, Sept. 1926, pages 1159-1167. 



Open Wire and Carrier Circuits 



Carrier Current Telephony and Telegraphy. 



American Institute of Electrical Engineers, Transac- 

 tions, Vol. 40, Feb. 1921, pages 205-300. 

 Electrician, Vol. 36, May 6, 1921, pages 551-554. 

 Practical Application of Carrier Telephone and Telegraph in 

 the Bell System. 

 Bell System Technical Journal, Vol. 2, Apr. 1923, pages 

 41-52. 



F. O. Wheelock 

 E. Jacobsen 



J. J. Pilliod 



J. N. Chamberlin 



H. S. Osborne 



H. H. Nance 

 H. H. Nance 



E. H. Colpitts 

 O. B. Blackwell 



A. F. Rose 



