COMPOSITION OF SLAGS. 



,705 



A-KALYSES XXX, XXXI, AND XXXII. Slags — Coutiuued 

 HatioiiaL 



Silica 29.0123 



Titanic acid 0. 5285 



Protoxide of iron 44.5226 



Peroxide of iion None 



Alumina 1.8427 



Lime 0.9221 



Magnesi.i 2.9814 



Alkalies Trace 



Oxide of zinc .. 1.8040 



Protoxide of manganese 2. 8606 



Suboxide ot copper None 



Oxide of lead 0.3138 



Arsenious acid i Trace 



Antimonious acid 0. 0140 



Phosphate of lime 1.9185 



Sulphide of calcium | 4.2997 



Sulphate of lime None 



Carbonate of lime | None 



Chloride ofsUver, with traces AgBr,AgI...j 0.0127 



Gold . - Marked trace 



Magnetic oxide of iron (Fe709) 2. 9500 



Carbon 0.0195 



33. 845650 

 0. 820000 



36. 789CC0 



None 



1. 182000 



5. 76U25 



3. 671935 

 Trace 



2. 353500 



4 259378 



None 



4. 326576 



0. 024147 

 Trace 



1. 430103 

 2. 007440 



Faint trace 



Trace 



0.018952 



Trace 



3.419CO0 



0. 034500 



Total . 



Percentage of lead 



Silver (ounces to the ton) 



Gold (ounces to the ton) about . 



100. 0024 



5.85 

 2.80 

 005 



31.10656 



0. 57300 

 34. 40836 



2. 71000 

 2. 33500 

 9. S9919 

 9.-75340 



Trace 



1. 04100 

 1. 15720 

 0. 04950 



3. 31740 

 Trace 

 Trace 



0. 70305 

 2.80373 



Trace 



Marked trace 



0. 00746 



Trace 



4.000 

 4.161 

 0. 0005 



1.639 

 0. 0005 



a Reported with FeO and FejOs. 



