28 
Transactions Texas Academy of Science. 
Birkinbine^ John. 
analyses of hematite iron ores from llano county, TEXAS. 
Iron. 
Silica. 
Pho.spliorus. 
Manganese. 
Sulphur. 
Per cent. 
Per cent. 
Per cent. 
Per cent. 
Per pent. 
63.25 
6.35 
0.049 
Trace. 
None. 
67.43 
4.03 
0.059 
Trace. 
Trace. 
66.27 
68.26 
68.82 
2.81 
0.47 
Trace. 
Trace. 
2.52 
0.038 
Trace. 
Trace. 
69.30 
3.83 
0.034 
Trace. 
None. 
70.95 
2.89 
0.024 
Trace. 
Trace. 
67.54 
2.45 
0.041 
None. 
None. 
69.17 
2.99 
0.009 
None. 
None. 
60.49 
15.67 
0.020 
Trace. 
None. 
50.99 
26.05 
0.019 
None. 
None. 
63.74 
10.08 
0.018 
None. 
None. 
67.27 
4.83 
0.018 
Trace. 
None. 
70.25 
1.23 
0.014 
Trace. 
None. 
Eeports on the Iron Ore Diisiriet of East Texas. 'Part II. Fuels 
and their Utilization. Chapter I. Charcoal Manufacture in 
Texas. 
' Second Ann. Eept. of the Greol. Surv. of Texas, 1890, pp. 33-'37. 
Austin, 1891. 
The existence of iron ores in the State directs attention towards the 
possibility of smelting them within its iboundaries. No immediate pros- 
pect of obtaining suitable mineral fuel. Charcoai suggested. The yellow 
pine furnishes excellent charcoal, as do also the hard woodis of Eastern 
Texas. Bhould the timber be thus used the necessity of reforestration is 
pointed out. Manufacture of charcoal. (lA) Charring in Pits or Mei- 
lers. (P)' Charring in Kilns. (C) 'Retort Charring. Charcoal made 
under dirt covers and in kilns. ICharcoal manufactured in Michigan; in 
Alabama. By-products. Economy of production. Eorm of kiln or retort 
.for Texas. Cost of production. 
Art. Iron Ores. Min. Eesources of the U. S. 1889-90. 
(Production of Iron in Texas), pp. 35-36. 
(Production of Brown Hematite in Texas), pp. 40-41. Wash- 
ington, 1892. 
The following, relating to the Iron Production oP Texas, is taken from 
a table (pp. 35-36), showing the “Production of iron ores by. States in 
1890, 1889, and 1880, with percentages of increase or decrease:” 
State. 
1890. 
1889. 
1880. 
Rank. 
Produc- 
tion. 
Per cent 
of total. 
Rank. 
Produc- 
tion. 
Per cent 
of total. 
Rank. 
Produc- 
tion. 
Per cent 
of total. 
Texas.... 
21 
22,000 
long 
tons. 
0.14 
20 
13,000 
long 
tons. 
0.09 
39 
3,214 
long 
tons. 
0.05 
