( 80 ) 
TABLE. 
Double sulphate of uranijl and potassium. 
Series in which the strongest bands occur, at 20° K. 
490.34 — 511*35 — 53410 — 558.89 — 586*05 
yXlO 7 837 833 830 820 
The same series at 80° K. 
490.42 — 51118 — 534*24 — 559B9 — 586*31 
yXlO 7 836 833 831 830 
Double sulphate of uranyl and sodium. 
Series of. strong bands 80° K. 
48915 — 51012 — 5331)0 — 557*85 
yXlO 7 840 841 835 
Another series of strong bands at 80° K. 
512*54 — 53517 — 56016 
1 
yXlO 7 837 833 
Double sidphate of uranyl and ammonium. 
Series of strong bands at 80° K. 
491.26 - 51215 — 535*54 — 56014 — 58811 — 618.40 
1-X10* 842 841 839 829 833 
Another series of strong bands at 80° K. 
49317 — 51418 — 5381)1 — 563153 — 590*80 — 621.57 
yXlO 7 839 839 835 825 838 
TJranylsulphate. 
Series of strong bands at 80° K: 
i 491.83 - 513.39 — 536*94 — 562*68 — 591*01 — 621.95 
yXlO 7 854 853 852 852 644 
852 
852 
