266 ROSA AND WOLFF: INTERNATIONAL ELECTRICAL UNITS 



2. Using Filter Paper 



(6) Mean of 3 deposits, PTR, with filter paper 1.01846, 



(8) Mean of 6 deposits, LCE, with filter paper 43 7 



(15) Mean of 1 deposit, NPL, with filter paper 47 5 



Mean of 10 deposits 1.01845 



3 Using Silk 



(5) Me n of 6 deposits, PTR, with silk 1.01828 2 



(14) Mean of 2 deposits, NBS, with new silk 58 



(13) Mean of 6 deposits, NBS, with used silk 28 5 



(17) Mean of 1 deposit, NPL, with used silk (electrolyte slightly alkaline) 29o 



Mean of 15 deposits 1.01832 3 



Mean of 13 deposits, excluding new silk 1 .01828 6 



4- Electrolyte Indicated by the Chemical Tests to be Slightly Impure 



(7) Mean of 1 deposit, PTR, with no septum 1 .01837 3 



(9) Mean of 2 deposits, LCE, with no septum 22i 



(16) Mean of 2 deposits, NPL electrolyte, with no septum, large voltame- 



ter 45 8 



(11) Mean of 11 deposits, NBS electrolyte, with porous cups, large vol- 



tameter 43o 



(12) Mean of 18 deposits, NBS electrolyte, with porous cups, small vol- 



tameter 28o 



(10) Mean of 1 deposit, LCE electrolyte, with porous cups, medium vol- 

 tameter. 21 4 



Mean of 35 deposits 1 .01833 5 



5. Electrolyte Slightly Alkaline — NaOH added 



(18) Mean of 2 deposits, electrolyte, alkaline, added 2.l/l0 e NaOH 1.01836 3 



Mean of 1 deposit, electrolyte, alkaline, added 5/] 6 NaOH 58 



Mean of 1 deposit, electrolyte, alkaline, added 10/l0 6 NaOH 75 



Mean of 4 deposits 1.0185U 



6. Electrolyte Slightly Acid, HNOs added 



Mean of 1 deposit, electrolyte acid, added 10/10 6 HN0 3 1.01820 



Mean of 2 deposits, eleclrolyte acid, added 100/l0 G HN0 3 16 



Mean of 3 deposits 1 . 01817 



