Traus.R.Dubl.Soc.Ser.ll.VolVll. 



Plate XXU. 



Absorption Spectra 



ABC r G HK M N U 



RED POTASSIUM CHROMOXALATE AT DIFFERENT TEMPERATURES 

 namely; I AT lOO- .^ «t75° SatSO- />»i> 4 AT 2 0°C 



Absorption Spectra. 



D E V V, UK I. M N 



praseodym ammon 



lATE I AT 20" C 2 AT 100° C. 

 TRATE 3AT20'' C 4 AT 100° C. 



nEl.ancEn6ta.viii8C? 



