754 



BIRKELAND. THE NORWEGIAN AURORA POLARIS. EXPEDITION, 1902 1903. 



TABLE CXVII 

 (continued). 



TABLE CXVI1I. 

 Mean values. 



As regards absolute magnitude, however, the figures we have here determined are very different 

 form those previously found. We see here that Je has throughout values about 400 times greater than 

 before, which indicates that q\ and q t in the previous instances have really had an order of magnitude 

 of several hundreds, as mentioned on p. 734. 



In the period of about one month, during which we made observations, there is no case in which 

 induction-phenomena are so conspicuous as in the storm of the loth February, 1903; but it is quiti 

 distinct in a number of storms. 



We have previously reproduced some of the registered curves (see p. 652 653). 



The induction-phenomenon appears perhaps most clearly in the vector diagrams that we have drawn 

 and which are represented here. 



