SOME MERCURY STANDARDS OF RESISTANCE, ETC. 



101 



TABLE IX. 



Thus we may write 



Resistance of 1 international ohm resistance of unit assumed as = to 



10" C.G.S. units = 0-00008 S . 



Taking the mean value as representing the international ohm, the evaluation of the 

 standards becomes : 



with a probable error, as evaluated from the differences, 'of O'OOOS per cent. 



