54 
RECORDS OF THE AUSTRALIAN MUSEUM. 
chloride of mercury in the cold, the sulphide of iron being unacted 
upon under these circumstances. The latter method of purification 
was chosen. *18 gram of iron was extracted from -52 gram of 
the original powdered sulphide by allowing the latter to stand 
for twenty-four hours with a concentrated solution of mercuric 
1 -i rr,L -~ ^«’oi tn 34.*fi oer cent. 
100-0 
* Ann. K. K. Naturhist. Hofmus. Wien., x., 3-4, 1895, p. 85. 
f Ibid , p. 276. 
j Silliman's Amer. Journ. Sci. (2), v., p. 351, and ibid., xv., p. 6. 
