270 PROCEEDINGS OF THE AMERICAN ACADEMY 



Portion A^ Right. 



(86) 0.4332 gr. gave 0.1630 gr. C2O3 = 37.63 per cent. 



(87) 0.3239 gr. " 0.1217 gr. " = 37.57 



(88) 0.6813 gr. " 0.3062 gr. R2O3 = 44.94 



(89) 0.6749 gr. " 0.3035 gr. " = 44.95 « 



Atomic mass 105.1. 



Portion Ag Right. 



(90) 0.3317 gr. gave 0.1161 gr. C2O3 = 35.02 per cent. 



(91) 0.3216 gr. " 0.1126 gr. " =.35.00 « 



(92) 0.6800 gr. " 0.2823 gr. RA^ 41.52 « 



(93) 0.6529 gr. " 0.2709 gr. " = 41.50 " 



Atomic mass 104.05. 



B2 Right. 



(94) 0.3785 gr. gave 0.1314 gr. C2O3 = 34.73 per cent. 



(95) 0.2882 gr. " 0.0999 gr. " = 34.68 " 



(96) 0.6187 gr. " 0.2676 gr. R2O3 = 43.25 « 



(97) 0.6421 gr. " 0.2770 gr. " ^ 43.24 " 



Atomic mass 110.45. 



A2 Left. 



(98) 0.3458 gr. gave 0.1290 gr. C2O3 = 37.31 per cent. 



(99) 0.4089 gr. " 0.1523 gr. " = 37.24 



(100) 0.6892 gr. " 0.3062 gr. R2O3 = 44.43 



(101) 0.5986 gr. « 0.2660 gr. " = 44.44 



Atomic mass 104.75. 



A3 Right. 



(102) 0.3002 gr. gave 0.1162 gr. C0O3 = 38.73 per cent. 



(103) 0.3251 gr. " 0.1260 gr. " =38.77 " 



(104) 0.6667 gr. " 0.3031 gr. R2O3 = 45.44 " 



(105) 0.7642 gr. " 0.3478 gr. " = 45.51 « 



Atomic mass 102.75. 



(106) Ao, B3 Right. 



(107) 0.3426 gr. gave 0.1307 gr. C0O3 = 38.16 per cent. 



(108) 0.3401 gr. " 0.1298 gr. " = 38.18 " 



(109) 0.8197 gr. « 0.3728 gr. R2O3 = 45.46 « 



(110) 0.7623 gr. " 0.3467 gr. " = 45.47 " 



Atomic mass 104.65. 



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