on the spark spectra of titanium, chromium and manganese. 65 
X 
dX/X 2 
2859-00 
+ 2-37 s 
+ 0-852) 
0 
- 0-85 p 
- 2-37 s 
The four constituents were sharp and narrow, and the two 
r middle ones were only a little stronger than the two extreme 
I ones. 
2751-91 
+ 1-26 s 
+ 0-32 p 
0 
-0 32 2) 
- 1-26 s 
| do. 
2750-78 
+ 2-60 s 
+ 0-832) 
0 
-0-83 p 
-2-60 s 
I The middle constituents were stronger than the two extreme 
f ones, but they were all equally sharp. 
2749-01 
+ 3-38 5 
+ 1-182) 
0 
-1-182) 
- 3-39 s 
- 
The two middle constituents only a little stronger than the 
two extreme ones. 
2743-67 
+ 2-87 s 
+ 0-72 p 
o 
-0-72 p 
- 2-88 s 
| do. 
The following lines were divided into four constituents, but 
the separation was only clearly marked on analysis by the calcite. 
3433-5 
+ 1 - 162 ) 
+ 0-81 s 
0 
-0-81 s 
- 1 - 162 ) 
There were traces of other constituents, one on each outer side 
of those vibrating parallel to the lines of force : they were 
very weak and were quite invisible on interposing the calcite. 
The polarised condition of the constituents is to be noted. 
3422-92 
+ 1-19 s 
+ 0-62p 
0 
— 0 - 622 ) 
-1-19 s 
The two extreme constituents were weaker and more diffuse 
than the two middle ones. Compare 3358-64. 
3358-64 
+ 1"15 s . 
+ 0-57p I 
0 | r 
- 0-57 p I 
- 1-15 s 1 
do. 
+ 1-14 s 
+ 1 - 012 ) 
3197-22 
-1-01 p 
-1-14 s 
The second and the fourth constituent, counting from the less 
refrangible end, were stronger than the first and third. 
