APPENDIX. 



505 



15. Ammonio-Permuriate of Iron. 



\ atom sesquipermuriate of iron 

 1 atom muriate of ammonia 



16'. Ammonio- Muriate of Platinum. 



1 atom bichloride of platinum 

 1 atom muriate of ammonia 



17- Ammonio-Oxalate of Copper. 



1 atom oxalate of copper 

 1 atom oxalate of ammonia 

 3 atoms water 



18. Ammonio-Oxalate of Copper. 



1 atom oxalic acid 

 1 atom oxide of copper 

 1 atom ammonia 

 ] atom water 



19. Ditto, Pulverulent. 



1 atom oxalate of ammonia 

 1 atom dioxalate of copper 



II. POTASH COMPOUND SALTS. 



1. Alum. 



3 atoms sulphate of alumina 

 1 atom sulphate of potash 

 25 atoms water . 



2. Potash- Trisulpliate of Alumina. 



3 atoms trisulphate of alumina 

 1 atom sulphate of potash 

 9 atoms water 



