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BELL SYSTEM TECHNICAL JOURNAL 

 Valxjz ot a/ = l/r FOR TE Modes 



For any given mode in any given cavity, the values of S and M can be 

 calculated from (17). In general, these values will not coincide with those 

 which have been plotted, but by the same token, they will lie among a group 

 of four combinations which have been plotted. Since the changes in dis- 

 tribution are smooth, mental two-way interpolation will present no difficulty. 



Acknowledgment 



The final plates depicting the current distributions are the result of the 

 efforts of many individuals in plotting, spray tinting of the background, 

 inking of the streamlines on celluloid overlay, and photographing. Special 

 mention must be made, however, of the contribution of Miss Florence C. 

 Larkey, who carried out all the lengthy calculations of the tables hereto 

 attached and of the necessary data for the plotting. 



