on the spark spectra of palladium, rhodium and ruthenium. 349 



X 



dX/X" 



In- 

 tensity 







+ 2-03 



5 





2978-5 







3 







-2-05 



5 





2977-4 



+ 1-85 

 



6 

 4 



[ The most refrangible constituent widens into 

 f 2977-2. 





1 



1 



1 



2977-2 



+ 0-73 

 



5 

 3 



r The middle constituent removed by calcite. 





-0-73 



5 





+ 1-80 



2 





2976-5 







1 







-1-82 



2 







+ 1-97 



2 





2965-6 







1 







-1-99 



2 







+ 2-16 



2 





2945-6 







1 







-2-18' 



2 







+ 2-12 



3 





2927-6 







2 







-2-09 



3 





2916-4 





3 



Too weak to measure. 





+ 2-24 





2882-4 







2 







- 2-24 



3 





2841-9 





3 



) 



2813-5 





Y Too weak and diffuse to measure. 





+ 1-67 



) 



2810-9 







o 



- The middle constituent removed by calcite. 





-1-67 



3 



J 





+ 2-39 



3 





2788-0 







2 







-2-39 



3 







+ 2-13 



3 





2778-6 







2 







- 2-09 



3 





