32 6 Dr. Wollaston on the Discovery of Palladium. 
consisted merely of muriate of lime and muriate of palladium, 
without any appearance of decomposition. 
When I found all my endeavours directed to that end wholly 
unsuccessful, I no longer entertained any doubt of this sub- 
stance being a new simple metal, and accordingly published a 
concise delineation of its character ; but by not directing the 
attention of chemists to the substance from which it had been 
extracted, I reserved to myself an opportunity of examining 
more at leisure many anomalous phenomena, that had occurred 
to me in the analysis of platina, which I was at a loss to explain, 
until I had learned to distinguish those peculiarities, that I 
afterwards found to arise from the presence of rhodium. 
§ VI. Additional Properties of Palladium. 
In my former Paper on that subject I also added some ob- 
servations upon the properties and origin of palladium, describing 
only such a mode of obtaining it from platina as should avoid 
the introduction of any unnecessary ingredient which might 
possibly be misinterpreted, and omitted one of the most dis- 
tinguishing properties of palladium, by means of which it may 
be obtained with the utmost facility by any one who possesses 
a sufficient quantity of the ore of platina. 
To a solution of crude platina, whether rendered neutral by 
evaporation of redundant acid, or saturated by addition of 
potash, of soda, or ammonia, by lime or magnesia, by mercury, 
by copper, or by iron, and also whether the platina has or has 
not been precipitated from the solution by sal ammoniac, it is 
merely necessary to add a solution of prussiate of mercury, for 
the precipitation of the palladium. Generally for a few seconds, 
