1889.] Electro-chemical Effects on Magnetising Iron, 187 



Table H — continued. 





Electro-chemical effect between north and south polar terminals of 

 magnetised steel bars. E.M.F. in yolt. The electro -chemical 

 position of the north polar terminal was positive, except where 

 otherwise indicated. 



Time from 



















commence- 

 ment of 





Cupric bromide solution. 





experiment. 











Experiment 

 No. 71. 



Experiment 

 No. 73. 



Experiment 

 No. 75. 



Experiment 

 No. 79. 





Electrolyte 

 below. 



Electrolyte 

 below. 



Electrolyte 

 below. 



Electrolyte 

 below. 



seconds. 





 30 

 minutes. 



1 



2 



3 



4 



5 



6 



7 



8 



9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 26 

 27 

 28 

 29 

 30 



0-009 

 0-004 



o-ooo 



0-002 

 0-005 

 -007 

 0-009 

 0-009 

 0-006 

 0-007 

 0-007 

 0-009 

 0-009 



o-oio 

 o-oii 



0-014 



0-016 

 0-020 



0-019 

 0-015 



0-006 

 010 



0-007 

 0-006 

 0-011 

 0-014 

 0-014 

 0-020 

 0-024 

 0-025 

 0-027 

 0-025 

 0-028 

 0-028 

 0-032 

 0-036 

 0-038 

 0-040 

 0-040 

 0-044 

 0-044 

 0-043 

 0-043 

 043 

 0-041 

 0-041 

 041 

 0-041 

 0-040 

 0-040 

 0-041 

 0-041 



-0-009 

 -0-004 



-o-ooi 



0-003 

 0-004 

 0-002 

 0-004 

 0-003 

 0-003 

 003 

 0-004 

 0-005 

 0-003 

 0-009 

 0-010 

 0-011 



o-oio 



0-011 

 0-009 

 0-009 

 0-006 

 0-009 

 0-006 

 0-004 

 0-003 

 0-006 

 0-005 

 0-005 

 0-002 

 0-004 

 0-004 

 0-006 



-0-004 

 0-006 



0-006 

 0-007 

 006 

 006 

 0-009 

 0-009 

 0-007 

 0-007 

 006 

 0-005 

 0-004 

 0-003 

 0-002 



o-ooi 



0-001 

 0-002 

 0-003 

 -003 

 0-004 

 0-004 

 0-005 

 0-006 

 0-005 

 0-003 

 0-004 

 0-003 

 0-003 

 0-003 

 0-005 

 0-005 



The magnets for the experiments in Table H were 6 inches long. 



Experiments were also made, using cupric bromide as an electrolyte, in which 

 pairs of magnets 6 inches long were placed in apparatus, fig. 7, and the results 

 observed when the electrolyte was thus above the magnets. The N. polar terminal 

 was in the electro-positive position, with an E.M.F. somewhat similar in extent as 

 when using cupric chloride. 



