126 TRANSACTIONS OF THE 
The composite slag is run every month, which aver- 
ages: 
Sg aneenitei a vaca’ Lane 40.6% 
FOO shacks ey 20.5 
BUG SIVAN CU er A Ae 28.9 
COPPER ae 0.55 
The copper loss is accounted for by the small amount of 
settling space in the settler. The matte averages from 45 - 
60 per cent copper. 
The average analysis of the ore is: 
Beare me veletesay wit 36.0% 
Bren dsY wine a's vs men cele 14 
Ge 6 Sa a ae Bi a 22 
obs 1 64) § aU teat Ree 3 
CADDER es So ea 2.8% 
In order to make a 45-50 per cent matte we have to sup- 
ply more sulphur. This extra sulphur is furnished by the 
addition to the charge of a sulphide ore which is shipped in 
from Leadville, Colorado. The average amount necessary 
to furnish enough sulphur to give the required 45 to 50 per 
cent matte is 75 lbs. per 1500 lbs. of mine ore. A typical 
furnace charge is as follows: 
Mime Ore yon e 1500 lbs. 
Leadville Sulphide . 75 
San Pedro Slag .... 200 
Limeroek iit ahs. bss 150 
ORE) icc trees ely 12.2% 
A typical slag from the above charge will average: 
re) MMIC oN) INI ag 40.4% 
Uy 0 Amaia Uo Got Sa cea dae 21.6 
(OB SRNL St pers 28.0 
The greatest drawback to this company is transporta- 
tion. As before noted this property is 18 miles from a rail- 
road. Practically all freighting is done by team at a cost 
to the company of $4.00 per ton. This freighting charge in- 
creases the cost of coke to $10.50 per ton. Coal costs $3.50 
