240 Mr Solly , Liveingite , a new mineral from the Binnenthal. 
The crystals were finely powdered and then examined in the 
manner described in a former publication (Min. Mag. xn. 289). 
The amount of substance placed at my disposal was • 5 gram 
and this was used in the single estimation. The results obtained 
were 
Pb = 47*58 
S = 24-91 
As = 26-98 
99-42 
A small trace of Iron was present, but could not be estimated. 
The percentages required for a mineral having the formula 
4PbS 3 As 2 S 3 are 
Pb = 48-75 
S = 24-61 
As = 26-64 
10000 
H. J. 
