Runtgen Radiation from Vapours. 



Radiation from Vapour of Ethyl Bromide. 

 (Time of observation 2 to 3 minutes.) 



449 



Percentage absorption by 



Aluminium previous to 



absorption in other column. 



Percentage absorption by 



Aluminium (-00626 cm.) after 



absorption in column 1. 







24-1 



24 



24-4 



42 



24-1 



56 



23-6 



G7 



240 



75 



24-7 



Mean value 



24-2 



16-4. 



As the value of - for solid bromine had not previously 



been determined, the gas-chamber was replaced by a plate 

 of sodium bromide obtained by sticking the powder to a thin 

 aluminium sheet The same observations were repeated with 



Radiation from Solid Bromine 



Compounds. 



Percentage absorption by 



Aluminium previous to 



absorption in other 



columns. 



Percentage absorpt 

 (•00626 cm.) after abj 



ion by Aluminium 

 orption in column I. 



Radiation from 



Sodium Bromide. 



Radiation from 

 Bromyl Hydrate. 







24-8 



24-0 



24 



24-3 



24-5 



42 



23-4 



24-2 



56 



240 



24-3 



67 



24-1 



24-1 



75 



23-6 



— 



Mean value .... 



24-0 



24-1 



-(for NaBr) = 16*2. X (for Br(OH)) = 16-3. 



P P 



