Trans. Roy. Dubl. Soc, Ser. II., Vol. VII. 



Plate XIX. 



Potassium Sulphocyanate 

 with Ferric Chloride. 



Auric Chloride. AuCIa. 



Ammonio-l'nlladious 

 Chloride. Pd(NHi)2Cl4 



Potassium Pentasulphide. 



Prussiiin lilue in Oxalic 

 Acid. 



Ceric Potassium Nitrate. 

 2Ce(N03)4-4KNO;i-3H20. 



Potassium Chromate. 

 K;Cr04. 



Ammonium Dichromatc 

 (XHij-.Cr^O;. 



Potassium Bichromate. 

 KsCrjO,. 



Chromic Acid. 



The Absorption Spectra of solutions of various Anhydrous Salts at different temperatures. 

 These show no marked alteration when heated. 



