18 



16 



14 



12 



10 



8 



6 



4 



2 



ii mtl ffiMt nmTnt 1 1 1 liffl I I ffff W S - Tffff ^ff ff ff H ^ 



:|||±^l atiT1[||t[|||]t [ ffi ^ S 



001 .002 



Fig. 7. 



.003 



.001 .00 i 



Fig. 8. 



.003 



.001 .002 



Fig. 9. 



.003 



Figure 7. Results obtained with one specimen of gold SXlO"" 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 witli one specimen of silver 2X10"^ cm. thick. 

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

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



