PROPERTIES OF PHOSPHOR-BROXZE WIRES 

 TABLE IV. 



231 



Tvpe II. 

 Amplitude Rate of Loss 



Type III. 

 Amplitude Rate of Loss 



If we now assume that the rates of loss are equal in the two 

 states, for they seem to be nearly so in the smaller amplitudes, 

 we may say, 



K (Al—Al) = K (A'j—Al) 



T'L LT" 



where T is the steadily increasing period of type III and T" is 



the decreasing period of type II. Then T and T" are the only 



variables in the above equation and if the equation is to hold 



5t 



ICO ISO 



Ui t rati' o rvs 



Fig. 4 0. 



ROD 



true, the value of (A t 2 — A./) must also increase in the Left-hand 

 side and decrease in the right-hand side of the equation. Other- 

 wise the equality would be destroyed. Hence for equal falls 



