\ 



001 .002 



Fig. 7. 



.003 



.003 



Fig. 8. 



.00 1 .002 



Fig. 9. 



003 



Figure 7. Results obtained with one specimen of gold 8X10"'' cm. thick. 

 Abscissae, reciprocal of the frequency; ordinates, difference between A.C. 

 and D.C. settings in cm. of bridge wire. 



Figure 8. Results obtained with one specimen of gold 1 .67 X 10~^ cm. thick. 

 Abscissae, reciprocal of the frequency; ordinates, difference between A.C. 

 and D.C. settings in cm. of bridge wire. 



Figure 9. Results obtained with one specimen of silver 2X10"-' cm. thick. 

 Abscissae, reciprocal of the frequency; ordinates, difference between A.C. 

 and D.C. settings in cm. of bridge wire. 



