12 



Art. 8.— Y. Takahashi : 



Tap.lk III.'> 

 Comparison with former results. 



111 Table II. and Fig. 2 it can be seen that the specific 

 separation measured as a triplet increases with the magnetic 

 field, which ma}'' be attributed to the complicated separation. 



/ 4404*75, the middle hue of the first group, is resolved into a 

 sharp triplet. The separation of this line, being measured most 

 accurately, is taken as the standard of the separation, so that 

 neither table nor diagram of the separation is given for this line. 

 But the linear relation Ijetween the separations of the principal 

 lines in the following and the magnetic field — separation of 

 4404*75 — shows that the separation of this line is exactly 

 proportional to the magnetic field. According to Mr. "^^iinada, 

 the separation of this line is given l)y 



J/ 



ni 



= 1-064x10-*. 



As the absolute magnitude of the specific separation is not the 

 chief object of the present research, I have calculated tlie magnetic 

 field Irom the separation of this line by means of tlie above value 

 for the specific separation, williout any absolute determination of 

 the magnetic field. 



1) The magnetic fields applied by former investigators are not clear, as the separations 

 of sv)Uie lines, being measured at different fields, ai-e reduced to correspond to their standard 

 fields under the assumption tliat the separation is proportional to the magnetic field. But, as 

 the difference l^etween the stiintlard and the observed fields may probably not be large, the 

 standard fields are here quoted. As Hai-tmanns original paper is inaccessible, his result is 

 taken from Lütig's paper in Ann. (1. Physik, 38 (1912) p. 43; the ma<4netie field is therefore 

 unknown. 



The luean specific separation is here olitained fr».)U> 



AX \^ AX /v 



