1889.] Electro-chemical Effects on Magnetising Iron. 191 



Table J — continued. 



Time from 

 commencement of 

 experiment. 



Electro-chemical effect between north and south polar 

 terminals of magnetised steel bai*s. E.M.F. in volt. The 

 electro-chemical position of the north polar terminal 

 was positive, except where otherwise indicated. 



Nitric acid, potassium 

 biehromate solution, 

 and ferric chloride 

 solution. 



Sulphate of iron (cone, solution) 

 and £th nitric acid- 



Experiment No. 100. 



Set VII. 



Jilectrolyte below. 



Electrolyte 

 below. 



Electrolyte 

 above. 



seconds. 









o 



— ' 009 



0-072 



o-on 



30 



0-014 



-0-004 



009 



minutes. 









1 





0-006 



0-009 



2 





0-007 



-006 



3 



• 023 



o-oio 



0-004 



4 



'014 



0'013 



0-002 



K 

 O 



0*009 



0-027 



-002 



a 

 o 



009 



0-038 



0-002 



H 

 l 



- 009 



0-054 



. 002 



g 



'006 



U UoZ 



n 'Caw 



q 



o-oio 



0-089 





10 





0-079 







-oio 



0-054 





1 9 



• 009 



0'038 





13 



0-009 



0-014 





14 



0*006 



0-004 





JLO 



-001 







ID 



0-009 • 









-009 





0-009 



1 K 



J.O 



0-009 







1 Q 



0-009 







9Ci 



0-009 





013 



91 



0-006 







22 



0-014 







23 



018 







24 



0-011 







25 



0-006 





027 



26 



006 







27 



0-009 







28 



0-006 







29 



o-oot, 







30 



0'00i 





0-014 



35 









The magnets for the observations in above Table J were 6 inches long. 



VOL. XLVI. p 



