ON PRACTICAL STANDARDS FOR ELECTRICAL MEASUREMENTS. 47 



J/N .UN J«M JAN J»N /«N 



OJ I90S 04 190* OS I90S ■ 06 1906 0? 1907 08 1908 



Chaet II : Showing the Variations in Resistance of Manganin Stardards of 

 Nominal Values, 0001, O-Ql, 01 Ohm, and 1,000 and 10,000 Ohms. 



