Abstracts of Technical Articles From Bell System Sources. 



Western Electric Remodels Power Plant at Ilaivthorne Works} C. B. 

 Barnes. The summary of a six-year revamping program. A fea- 

 ture of the new plant is the installation of the largest cooling towers in 

 America. Airplane propeller-type forced-draft fans are employed. 



Long Telephone Lines in Canada? J. L. Clarke. This paper de- 

 scribes the development of the long distance telephone service in 

 Canada, historically, from its inception and the installation of the 

 nucleus of 360 miles, up to and through the present status and lines 

 listed in Table I, to the proposed development represented by Table II, 

 the result of a careful study of calls per day to be expected by 1932. 

 This effort is to provide for traffic requirements in a manner most suit- 

 able from a transmission point of view, and to accomplish it with a 

 minimum amount of switching. Much of the engineering work for 

 this is already actively under way and certain work of construction 

 actually commenced. A survey of existing routes and the matter of 

 transmission maintenance are discussed. 



The ''Raman Effect.'' ^ C. J. Davisson. A brief and informatory 

 account of the " Raman Effect." For this new discovery in the realm 

 of light and spectra, appraised as one of the most important achieve- 

 ments in physics in recent years, Sir C. V. Raman of India was awarded 

 the Nobel Prize in physics for 1930. 



Planning a Plant for the Manufacture of Lead-Covered Telephone 

 Cable} J. C. Hanley. Results of a study to determine the size and 

 type of building to be erected, the arrangement of machinery for the 

 most direct handling of product during process of manufacture, and the 

 most efficient materials-handling equipment. 



Outdoor Atmospheric Corrosio7i of Zinc and Cadmium Electrodeposited 

 Coatings on Iron and Steel.'' C. L. Hippensteel and C. \V. Borgmanx. 

 Experimental data are presented on the rates of corrosion of electro- 

 plated zinc, zinc alloy and cadmium protective coatings on steel in a 



1 Power, Dec. 2, 1930. 



•' Jotir. A. I. E. E., Dec, 1930. 



^Sci. Monthly, March, 1931. 



' Mech. Engg., March, 1931. 



* Trans. Atner. Electrochemical Soc, \'ol. I.\ III, 1930. 



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