ATOMIC WEIGHTS 



293 



Hence Sn= 118.98. 



Tin Tetrahromide. 



Mean, 27.123, ± .0020 



Potassium StannicJiIoride. 



Hence Sn= 119.07. 



Mean, 29.040, ± .0021 



.-1 mmonium Stannicldoride. 



Mean, 32.369, ± .0088 



Hence Sn= 119.1. 



