350 Dr. C. R. A. Wright on the Determination of 



Carbon Electrodes. 



The distance apart of the centres of the electrodes was 18 cen- 

 timetres, and the bore of the tube 1*5 square centimetre ; so that 



E = 



16*8 ohms. 





Microwebers per 









Current, in 

 micro webers. 



square centi- 

 metre of elec- 

 trode surface. 



E, in volts. 



CE, 



e=E-CE. 



67 



1-7 



1-446 





1-446 



8-1 



21 



1-460 





1-460 



109 



2-7 



1-504 





1-504 



167 



4-3 



1-583 





1-583 



32-2 



8-3 



1-662 



•001 



1-661 



103-3 



26-5 



1-761 



•002 



1759 



135-8 



34-8 



1-782 



•002 



1-780 



238-0 



61-0 



1-829 



•004 



1-825 



Values obtained with Acid containing 1 gramme of H 2 S0 4 'per 

 100 cubic centims. 



Gold Electrodes. 

 It m this case = r— =301 ohms. 





Microwebers per 









Current, in 

 microwebers. 



1 square centi- 

 1 metre of elec- 

 1 trode surface. 



E, in volts. 



CE. 



e=E-CE. 



7-9 



0-46 



2-211 



•002 



2-209 



27-8 



1-63 



2-401 



•008 



2-393 



68-1 



4-01 



2-483 



•020 



2-463 



1300 



7-65 



2-562 



■039 



2-523 



288-0 



16-9 



2-659 



•086 



2-573 



496-0 



29-2 



2-775 



•149 



2-626 



R now = 



Carbon Electrodes. 

 18-0x22-1 



1-5 



265 ohms. 





Microwebers per 









Current, in 

 microwebers. 



square centi- 

 metre of elec- 

 trode surface. 



E, in volts. 



CE, 



e=E-CR. 



5-6 



1-4 



1-500 



•001 



1-499 



13-7 



3-5 



1-614 



•004 



1-610 



25-2 



6-4 



1-701 



•007 



1-694 



55-4 



14-2 



1-763 



•015 



1-748 



85-1 



21-8 



1-823 



•023 



1-800 



248-0 



63-5 



1-938 



•067 



1-871 



