110 



AKSEL S. STEEN. TERRESTRIAL MAGNETISM. 



[NORW. POL. EXP. 



') The observer had previously used one of the declination magnets for quieting the needle, and had it 

 standing perpendicularly, north of the vibrating needle. It does not appear to have had any perceptible 

 influence. After this, however, only a very small magnet was used for quieting, which had absolutely no 

 influence. 2 ) On this day no less than 9 series of vibrations were taken for the purpose of finding out what 

 influence the declination magnet had when placed perpendicularly in the revolver's place after having been 

 used for quieting. 3 ) The declination magnet in the revolver's place with the north end upwards. 4 ) The 



