32 



Art. 7. — K. Yamada : 



We can not say that J?, is proportional to H. The deviations 

 from the mean are also seen from Fig. 1 of Plate XV. 

 The results of the previous investigators are: 



(20) /1: 3618-77. 



Intensity G; diffuse triplet; character b. This line is photo- 

 graphed on the same plate together with the zinc line /:4680"138 

 as field determination. 4680*138 is of the 3rd order spectrum and 

 3618'77 of the 4th. A line of other order also appeared close by 

 this zinc line in its red side as seen from the photographs (Plate I, 

 fig. 2 and Plate I, fig. 3). Also Plate III, Fig. 4. 



In higher fields, as the separations of the zinc line are large, 

 the determination of the field is not affected by the appearance of 

 this line. In lower fields, however, the overlapping of this line 

 witli +ÔÀ component of 4680' 138 was the cause of an error in the 

 measurement of the field, when determined b}' measuring the 

 distance of the outer two components of the zinc line; in such 

 cases, twice the distance between ^^^ and —d?. was taken instead of 

 the separation of the outer two components, as this zinc line has 

 been confirmed to be perfectly symmetrical. J?~ denotes the 

 separation of two outer components as before. 



