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IOWA ACADEMY OF SCIENCE 



amplitude. Again the factors were simply the ratios of the per- 

 iods to an arbitrary number. They were in this case 1, 1.16 

 and 2.16. Table II below gives the data of figure 33. 



(1) 



TABLE II. 



(2) 



K=l 



K=1.16 



(3) 



K=2.16 



K.xT. 



Amp. 



The variation from a single line here is somewhat more 

 marked than in the previous table (I.) where there was a con- 

 stant load. The curve (figure 33) shows, however, that the 

 varying load has no great effect upon the period-amplitude curve. 

 The loads were so very wide in range that it seems safe to as- 

 sume that ordinary variations in the load have no effect upon 

 the action of the wire other than changing the period of vibra- 

 tion. 



