106 



AKSEL S. STEEN. TERRESTRIAL MAGNETISM. 



[NORW. POL. EXP. 



') The revolver not there, but while noting the 101st to the 131st passage of the central division by 

 the magnet, the observer had a pocket chronometer in his pocket at a distance of about half a metre from 

 the north end of the magnet. 2 ) No revolver. This series of vibrations is characterised in the journal as 

 "very good". 3 ) The revolver under the stand as usual. The vibration-box placed on the stand. The 

 vibration-box has previously stood upon a stone slab, frozen firmly into the ice. 4 ) The revolver laid uside. 



