190 



PROCEEDINGS OF THE AMERICAN ACADEMY 



Corrected Error 



Weight of Weight of Weight in Weight 



NaCl tolien. NaCl found. ofNiiCl ofNaCl 

 found. found. 



grm. grm. grm. grm. 



(32) 0.1166 0.1163 0.1169 0.0003- 



(33) 0.1139 0.1127 0.1132 0.0012- 



Error in 

 corrected 

 Weight of 

 NaCl found. 



grm. 



0.0003+ 

 0.0007— 



Volume of Amyl 

 Alcoliol used. 



Residual. „, . , 

 Total. 

 I. II. 



cm.^ cin.3 cm.3 



8 8 

 5 7 



150 

 150 



Corrected Error in Error in corrected 



x.ni"i 1 T- arT i- 1 T -ni > 1 Weight of Weight of Weight of 



LiCl taken. Li.SO, found. L.Cl found. Licifound. LiCffound. LiCl found. 



Weight of Weight of Weight of 



grm. grm. grm. grm. grm. grm. 



(32) 0.1287 0.1662 0.1284 0.1280 0.0003— 0.0007— 



(33) 0.1347 0.1759 0.1359 0.1353 0.0012+ 0.0006+ 



Weight of 

 KCl taken. 



grm. 



(34) 0.1155 



(35) 0.1034 



(36) 0.1914 



(37) 0.1953 



Weight of 

 KCl found. 



grm. 



0.1142 

 0.1017 

 0.1905 

 0.1939 



Corrected 

 Weight 

 of KCl 

 found. 



grm. 



0.1152 

 0.1028 

 0.1912 

 0.1950 



Error 



in Weight 



of KCl 



found. 



grm. 



0.0013- 

 0.0017- 

 0.0009- 

 0.0014- 



Error in 

 corrected 

 Weight of 

 KCl found. 



grm. 

 0.0003- 



0.0007- 

 0.0002- 

 0.0003- 



Volume of Amyl 

 Alcohol used. 

 Residual. ^^^^j^ 



I. II. 

 cm. 3 cm.' cm. 3 



10 10 100 



10 12 200 



3 11 90 



4 18 110 



(34) 

 (35) 

 (36) 

 (37) 



Weight of Weight of 

 LiCl taken. Li2S04 found. 



grm. 



0.1125 

 0.1251 

 0.1263 

 0.1282 



grm. 



0.1475 

 0.1649 



Weight of 

 LiCl found. 



grm. 



0.1139 

 0.1274 



Corrected 

 Weight of 

 LiCl found. 



grm. 

 0.1128 



0.1162 



Error in 

 Weight of 

 LiCl found. 



Error in corrected 



Weight of 



LiCl found. 



grm. grm. 



0.0014+ 0.0003+ 

 0.0023+ 0.0011-}- 



Thus it appears that, in the separation of the insoluble chlorides 

 from the larger amounts of lithium chloride, the residue of two pre- 

 cipitations is substantially free from lithium. , 



For the sake of bringing the data in hand more directly into com- 

 parison, the corrected errors of the preceding determinations are 

 tabulated again in the following statement. 



