330 Dr. Wollaston on the Discovery of Palladium. 
It must, however, be acknowledged that the method I have 
pursued is by no means sufficient for determining the precise 
quantity of expansion of any substance ; but I have not been 
induced to bestow much time on such an inquiry, since the 
extreme scarcity of palladium precludes all chance of any prac- 
tical utility to be derived from a more accurate investigation. 
