Bea et rea , m SIN 
P = « “ : 
a a PI / % 
The Magnetic Separation of Lines 17 
Every line in the triplet class is some small multiple of the 
simple values given with the lines having several components. 
Many of the lines, however, could safely be different multiples of 
more than one of these values. It is therefore of no significance 
to so classify the iines, e. g. a great many triplets have values 
approximately 1.25. If we assume .c5 as a possible error, then 
any value between 1.20 and 1.30 must be considered. We then 
may have in these limits multiples of the intervals .18, .20, .30, .43, 
and .63. Further, if multiple relations hold and one attempts to 
find series in the triplet class, one is confronted by the fact that 
triplets of a certain magnitude may belong to quite different 
groups. As per above illustration, five triplets of separation 1.25 
could belong to as many different groups. When we consider 
farther the small differences in the triplets here noted, it is seen 
that types exist whose ditference in separation is so small that a 
very small error in observation would place a line in a wrong 
type. These two considerations indicate that series can be only 
found, if present at all, in triplets, with great labor. Whereas in 
other types of separation they are, by Preston’s law, at once ap- 
parent, if present at all. 
VI. ZIRCONIUM 
The two following lines have eleven components each: 
‘Nesssiieeai0) A=8272.39 
a1 An/d2 A CB hae Wa, A 
5 | —2.24 s 6.37 5 | —2.26 5 6X<.37 
3 | —1.50 s 4 2 | —1.54 s 4 
3) —111p| 3 3|—111p/] 3 
1|— 745 2 1 —- 5 2 
6| — 84f)| 1 5 | — 8387p) 1 
1 —-§ 0 1 —s 0 
6 | + .34f)..... il rene Th 722k ans lee 
i ie eae een Beas cta le SAape tals 1 len ae cerca (SEITE 
3 the el (U3 2] ae 3 ee 2S 
Sed DONS) ie. saad bie ul atl OPS tI eine eas 
?| +—s]} bo De Wt a eA Oe SE scl eter wake 
17 
