120 L. M. Cheesman— Measurement of Electric Currents. 
itself by irregularities in the position of rest of the needle after 
the current had been acting; a graphic representation of the 
positions of rest of the in a series of experiments 
extending over the greater part of a day, the current being 
closed from time to time, showed, however, no such irregular: 
ities. Had the second possibility occurred, that is, had the 
* Pogg. Ann. Ergiinzungsband, vii, 1876. 
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