ARTICLES BY BELL SYSTEM AUTHORS 293 



the results may suggest a possible mechanism for a portion of the emission 

 from thick oxide cathodes, there exist serious obstacles to such thin tilm 

 phenomena as a complete explanation. 



Long Distance Finds the Way. W. H. Nunn.^ Bell Tel. Mag., V. 28, pp. 

 137-147, Autumn, 1949. 



Private Line Services for the Aviation Lndustry. H. V. Roumfort.-^ Bell 

 Tel. Mag., V. 28, pp. 165-174, Autumn, 1949. 



Growing and Processing of Single Crystals of Magnetic Metals.] J. G. 

 Walker,^ H. J. Willl\mS' and R. M. Bozorth.^ Rev. Sci. Lnstruments, 

 V. 20, pp. 947-950, Dec, 1949. 



Abstract — Single crystals of nickel, cobalt and various alloys are grown 

 by slow cooling of the melt. They are oriented by optical means and by 

 X-rays, and ground to the desired shape using the technique described. 



A Look Around — and Ahead. L. A. Wilson.^ Bell Tel. Mag., V. 28, pp. 

 133-136, Autumn, 1949. 



t A reprint of this article may be obtained on request to the editor of the B. S.T.J. 

 1 B.T.L. 

 3A. T. & T 



