240 



BRADLEY M. PATTEN 



TABLE 4 

 Angular deflection at 60 per cent difference 



1 GLOWER 



19.46° 



2 GLOWERS 



3 GLOWERS 



4 GLOWERS 



22.28° 



Averages for 100 trails 

 20.52° 



19.88' 



5 GLOWERS 



19.25° 



TABLE 5 



Based on the measurements of 3000 trails, showing the avera'je angular deflection 

 at five different absolute intensities and nine relative differences of intensity 



