﻿'lb'2. Zeeman Effect in Satellites of Violet Line of Mercury. 



last-mentioned lines, whose displacements are proportional' 

 to the square of the field strength in the initial state, may be 

 mentioned +58 of the cadmium line A, 4800 for p- and 

 .^-components, and —103 of the bismuth line A, 4722 for 

 ^-components. 



The comparison of the present experiment with the results 

 of previous investigators is of little importance, since the 

 anomalies here discussed were not noticed in most cases. 

 Gehrcke * and v. Baeyer were the first to investigate the 

 Zeeman effect of a satellite of \4359 in weak fields ; the 

 same satellite was afterwards investigated by Lunelund, but 

 as the upper limit of the field did not exceed 3500 gauss, 

 the measurements did not bring out the principal features 

 discussed in the present paper. The lines on both sides of 

 P+3, which appear in strong fields according > Wendt f , 

 are probably the branches of the satellites —18 and 

 + 46 ; the correspondence with our result is not exact. 



In his theory of the Zeeman effect, Voigt % has shown that 

 for a simple coupling with an electron, the change of wave- 

 length for the ^-component of a satellite takes place at first 

 proportionally to the square of the field, and then according 

 to an hyperbolic law. The behaviour of some of the satellites 

 of the line here investigated corresponds to this theory as 

 already noticed. In addition to this, we meet with several 

 similar cases in the s-components; this evidently calls for 

 a new discussion of a system with another kind of coupling, 

 It may, how ever, be objected that the study of the mercury 

 lines \ 5461, \ 4359, and X 4047 is limited to a triplet of the 

 second subordinate series, so that other kinds of displace- 

 ments may appear with other lines and with lines of other 

 elements. But the results of different experimenters on 

 satellites of other spectrum lines show that the types of 

 anomalies are not numerous, so that we may arrive at a 

 satisfactory explanation of the satellites and their connexion 

 with the principal line, by following the reason based on the 

 mutual action of vibrating electrons. By the study of 

 the three lines above-mentioned, we can obtain abundant 

 experimental data for testing the theory of the coupling of 

 electrons iu explaining the different behaviours of the 

 satellites in magnetic fields. 



Physical Institute, University of Tokyo, 

 July 28th, 1914. 



* Gehrcke and v. Baever, Ver. d. Beutsch. Phys. Ges. viii. p. 399 

 (1906). 



t AVendt, Ann. d. Phys. xxxvii. p. 535 (1912). 

 X Voigt, Ann. d. Phys. xlii. p. 815 (1913). 



