86 Mr Purvis, The influence of very strong 



3994 show well-marked signs of being widened, as has been 

 noted before. 



Antimony. 



Wave-length 



X 4622*0. This line becomes a widened reversal or doublet. The 



separation is well marked and clearly defined. 



4351*5 1 



, 9fi , ," j- Two broad lines which seem to show signs of widening. 



41 32 -8.) Two lines, which seem to show distinct widening, but are 



4033 "7./ too weak to analyse. 



3722*4. This line becomes a widened reversal or doublet. The 



separation is quite sharp and clearly defined. 

 3637*5. There is a distinct widening of this line. On analysing 



it with the calcite, it seems to be a triplet, with the two 



outer components vibrating perpendicular, and the inner 



one parallel, to the lines of force. 

 3597*8. A nebulous line, and seems to show signs of being 



widened. 

 3520*3. A weak line, which appears to be widened, but it is too 



weak to analyse. 



qjqoV \ Two nebulous lines, which appear to be widened. 



3267*6. There is well marked widening. "When analysed with the 



calcite, it appears to be a triplet, the two outside 



members of which vibrate parallel, and the inner one 



perpendicular, to the lines of force. 

 3240*5. A broad nebulous line, which appears to be slightly 



widened. 

 3231*6. This becomes a triplet, the two outer members vibrate 



parallel, and the inner one perpendicular, to the lines of 



force. 

 3039*8. A broad diffuse line, which is perhaps a little widened. 

 3029. This becomes a triplet. On analysing with the calcite, it 



seems to be divided like 3231*6, but the members of 



the triplet do not seem to be as sharply defined as those 



of 3231*6. 

 2877*1. There is a distinct widening. On analysing with the calcite, 



it appears to be a triplet, with the two outside members 



vibrating parallel, and the inner one perpendicular, to 



the lines of force. 

 2768*1. This line is widened, but it does not seem to be separated 



by the calcite. 



2717*9 \ 



9( .qi „7 These lines show a widening, but they are too weak to 



9R81 Vl analyse by the calcite. 



2668*9. A widened reversal or doublet. The separation is well 

 marked and clearly defined. 



