Mar. lo. 1919 Solubility of Lime, Magnesia, and Potash in Minerals 261 



not be taken as truly representative, the results including those from 

 samples 4 to 10, taken as a whole, are probably more truly representa- 

 tive of the actual solubility conditions. 



(i) In contact with an acid soil extract more potash is removed from 

 muscovite than lime from epidote, or magnesia from chryoslite and that 

 on the whole more lime is extracted from epidote than magnesia from 

 chrysolite. 



(2) So far as the solubility of the lime in epidote and the magnesia in 

 chrysolite are concerned, the results are quite constant in samples 4 to 

 10, with the average for these samples of 0.27 per cent of lime from 

 epidote, and 0.17 per cent of magnesia from chrysolite. 



