535 



If the experiment has been performed with W^^^ and Wg^ the same, and 

 with W^ and V/32 the same, then the following equivalent distance ratios 

 are obtained: 



(18) 



(19) 



If, now, the equivalent weight ratios and equivalent distance ratios are 

 independent of the diaphragm material. 



(20) 



and 



(21) 



Equations (20) and (21) can be written 



^Bl ^ / %2 



^Al I ^A2 / 1 ^A2 



(22) 



Equation (22) will be true if m-j^ n-j^ m^^ m2 



or 



m2 n2 "l °2 ' 



which was one of the premises. 



It is, therefore, evident that results of somewhat more general 

 significance will be obtained if explosives are compared on the basis 

 of equivalent weights, equivalent volumes, or equivalent distances 

 (all independent of diaphragm material), rather than on the basis of 

 relative damage produced. In practice, it was fo\md more convenient 



