Chase. | 998 (Jan. 18, 
ARSENIC, K H. 
Wave-lengths. Quotients. Theoretical. 
617.54 617.67 1.0000 1.0000 1.0000 il 
611.69 611.67 1.0096 1.0098 1.0093 1+ua 
578.95 578.73 1.0667 1.0673 1.0650 1+ 7a 
533.55 533.41 1.1566 1.1580 1.1579 14+ 17a 
Maanesivum, K. 
Wave-lengths. Quotients. Theoretical. 
518.73 1.0000 1.0000 1 
517.64 1.0021 1.0020 1+2a 
517.17 1.00380 1.00380 1+3a 
459.62 1.1286 1.1285 1+ 96 
448.57 1.1564 
448 .39 1.1569 1.1570 1+113d 
Tin, K H. 
Wave-lengths. Quotients. Theoretical. 
645.83 645.27 1.0000 1.0006 1.0000 1 
615.59 1.0491 1.0530 1l+a 
556.83 1.1598 1.1590 1+ 3a 
556.59 1.1604 1.1620 1+ 206 
510.55 510.40 1.2650 1.2642 1.2650 i+5a 
459.47 1.4056 1.4050 1+ 53 
453.41 1.4244 1.4240 1+ 84a 
Porasstum, H. 
Wave-lengths. Quotients. Theoretical. 
630.85 1.0000 1.0000 1 
624.81 1.0097 1.0097 1+ida 
613.25 1.0287 1.0291 lta 
583.78 1.0806 1.0802 1+¢ 
581.79 1.0845 1.0843 1+) 
580.80 1.0862 1.0872 1+ 3a 
551.96 1.1430 1.1454 1+ 54a 
483.18 1.3360 1.33871 1+ 4) 
438.96 1.4372 1.4862 1+ 154 
431.16 1.4632 1.4653 1+ l6a 
426.00 1.4809 1.4810 1+ 6¢ 
418.77 1.5064 1.5057 1+ 60 
SILveR, K H. 
Wave-lengths. Quotients. Theoretical. 
547.55 547.44 1.0000 1.0000 1.0000 1 
546.96 546.63 1.0011 1.0015 1.00138 1l+a 
521.32 521.34 1.05038 1.0501 1.0502 1+ 38a 
This cannot be regarded as a satisfactory accordance. 
