372 E. F. PITTMAN. 
Je)o) a a Aide 5) 
Cu. me aM Beco) 
Sb. fy nee ee 2080) 
Fe. fat aS, seh Poa) 
Ag. ne ae sath Some 
8. ee a3 none aes 
94:1 
Insoluble Mere em) 
_ Moisture by difference... 2°9 
100-0 
Always amorphous ; too impure to be interesting. Associated 
minerals galena, anglesite, cerussite, bindheimite, tetrahedrite, 
malachite, and rarely brochantite ; lode-gangue limonite. Depth 
about eighty to ninety feet, vertical. 
Kerargyrite—Silver chloride—Comparatively scarce. Some 
very pure specimens were found with the antimonial chloride, 
which were colourless, and in thin pieces quite translucent. 
Assayed 73°1 per cent. Depth various ; lode-gangue limonite. 
_ Lodyrite—Silver iodide—Fairly plentiful in various parts of the 
mine. Always with limonite. Some found at shallow depth was 
associated with a bright red mineral readily tarnishing on exposure 
to sunlight, which was found to be sulphide of mercury. No 
special tests made. Various depths. 
Galena including Anglesite—Almost all grades of granular 
form have been met with, from the finest grain—very like chalco- 
cite—to cubes six inches across, but contrary to the general 
opinion, comparatively little assistance in discrimination was 
afforded by the differences in crystalline structure. Some samples 
very rich in silver were exactly similar in appearance to many of 
the poor ores, occurring sometimes within a short distance of each 
other in the same matrices. As an instance of their similarity 
might be mentioned two classes of galena which were being stoped 
simultaneously within a short distance of each other, and which 
