1889.] Electro-chemical Effects on Magnetising Iron. 183 



Table F — continued. 





Electro-chemical effect between north and south polar terminals 





of magnetised steel bars. E.M.F. in volt. 



The electro- 





chemical position of the north polar terminal was positive, 





except where otherwise indicated. 





Time from 





Cupric chloride solution. 





commencement 











of experiment. 











Set Til. 



Set IV. 





Average of 10 experiments. 



Average of 8 



experiments. 





Electrolyte 



Electrolyte 



Electrolyte 



Electrolyte 





below. 



above. 



below. 



above. 



seconds. 















— "002 



o -not 



u uuj. 



a -ai a 

 U ULU 



A -A99 

 — U UZ^ 



30 



"006 



"009 



a -aaq 

 u uuo 



U UUD 



minutes. 











1 



a -aa^ 



U UUO 



U UUO 



a -aa/1 



U UU4L< 



A -AA9 

 U WZ 



2 



"003 



"005 



A -AAK 



A -AAK 

 U UUO 



3 



- 007 



-007 



U UUo 



A -AI 1 

 U U1L 



4 



-on 



-009 



A. -AAA 

 U UUO 



a -ai o 

 u uu 



5 



013 



-009 



A -AAQ 



u uuy 



a -AAQ 



u uuy 



6 



-016 



-008 



a -m n 



U U1U 



"009 



7 



-018 



-007 



a -AA8 



U UUO 



n -007 



8 



-016 



-008 



a -nin 



"012 



9 



"016 



-008 



'012 



"008 



10 



016 



-010 



a -ai i 



U UJL± 



a •AA'7 



u uu/ 



11 



-015 



-008 



a -ai 9 



U U14 



A -AA9 

 U UUZ 



12 



0-013 



0-008 



n -ai 9 



U Ul^i 



A -AA8 

 U UUO 



13 



0-015 



0-010 



a -m q 



U U±o 



A -AA^ 

 U UUO 



14 



0-016 



0-015 



0-015 



0-009 



15 



0-016 



0-015 



0-014 



0-007 



16 



0-018 



0-013 







17 



0-019 



0-018 



o-oio 



0-006 



18 



0-019 



0-014 







19 



0-014 



0-013 







20 



0-013 



015 



0-013 



0-009 



21 



017 



0-014 







22 



0-013 



0-013 



0-020 



0-004 



23 



0-014 



012 







24 



0-013 



0-012 







25 



O'OJl 



0-012 



0-007 



0-008 



26 











27 



0-017 



0-014 







28 











29 











30 



0-013 



o-oii 



0-007 



0-011 



35 









0-018 



40 









0-021 



45 









0-013 



The pairs of magnets in the experiments of Set I varied in length from 8| inches, 

 6 inches, and 4^ inches. In Sets II, III, and IY, the magnets of each pair were 

 6 inches long 



