72 
Mr Purvis, The influence of a strong magnetic field 
X 
dX/X 2 
2946-93 
+ 1-44 
0 
-1-45 
2942-08 
+ 1-45 
0 
-1-45 
2940-34 
+ 1-25 
0 
- 1-26 
2939-46 
2935-22 
+ 1-76 
0 
-1-75 
2934-07 
+ 0-96 
0 
-0-96 
2928-42 
+ 1-16 
0 
-1-16 
2928-28 
2927-19 
+ 1-66 
0 
-1-69 
2923-80 
+ 1-41 
0 
-1-41 
2923-57 
2921-92 
+ 1-15 
0 
-1-15 
2921-32 
+ 1-33 
0 
- 1-33 
2915-58 
2915-34 
2911-78 
2910-73 
2904-16 
2899-58 
+ 2-02 
0 
-2-01 
2899-26 
1 
J 
Too weak to measure. 
The middle constituent was removed by calcite. 
do. 
Too weak and widened into the triplet of 2928-42. 
The middle constituent was removed by calcite. 
Too weak and widened into the triplet from 2923-80. 
Middle constituent removed by calcite. 
do. 
The constituents widened into each other, and they were too 
weak to separate by the calcite. 
Too weak to measure. 
do. 
