Record oe Geology op Texas, 188 ' 7 - 1896 . 
193 
289. Leroee, Dr. Otto. 
Eemarkp on the Geology of the Concho Country, State of Texas. 
Amer. Geologist, Yol. YII, pp. 73-77; 2 cuts. Minneapolis, 
Feh., 1891. 
A desoription of the beds between the Lower Oretaeic, Trinity Sands of 
Hill, and the Permian as exposed in the vicinity of San Angelo, Texas, for 
which the nanie San Angelo Beds is proposed. 
290. 
Reports on the IronDre District of East Texas. Part II. Fuels 
/and their Dtilization. ‘Chapter II. Lignites and their Dtiliza- 
tion, with special references to the Texas Brown Coals. 
Second Ann. Eept. of the Geol.-Surv. of Texas, 1890, pp. 38-63. 
Austin, 1891. 
' iContents : Introduction. Distillation of Lignites : Tar and its Deriva- 
tives, Par aline, (Mineral Oil, Gas, Dyes. Lamp Blaclc; Tanning Material; 
(Sugar ■, Refining ; Fertilizers. Fuel : Goke, Briquettes, Drying the Lig- 
nites, Pressing the Briquettes; Lignites in Smelters; Raw Lignite in the 
Manufacture of Steel. Occurrence of Texas Lignites. Oomparison of Lig- 
nites;’ Analyses. Method of Analysis. Literature: Parafines, Mineral 
Oils, and Tar; Lignites — (Heating Effects of; Blacking; Tanning; Illum- 
inating Gas; Utilization of Lignites in Smelters; Manufacture of Bri- 
quettes ; Manufacture of Coke from Lignite. 
“The State of Texas possesses immense deposits of this mineral treasure 
[lignites] covering a large part of her eastern territory, frequently asso- 
ciated with deposits of valuable iron ores. The age of the coal, as deter- 
mined by different State Geological Surveys, is Tertiary, and, acoording to 
analyses made by different members of the present Survey, the coal is fre- 
quently of the finest quality, far superior to that so extensively used in 
European countries. 
“These deposits have long been known by the people of Eastern Texas, 
but have been generally considered valueless, and consequently but little, 
indeed almost no mining of the material has been done in this region, with 
the exception of a few places where the coal has been used for household 
purposes. Dr. Buckley first gave a general outline of the formation in 
which the lignite occurred, and in the First Report of Progress of the 
present Survey it was more fully defined as Beginning on the 'Sabine 
River- in iSabine county, the boundary line runs west and southwest near 
•Crockett, Navasota, Ledbetter, Weimar, and on to Helena and the Rio 
Grande; thence back by Pearsall, Elgin, Marlin, Richland, Salem and 
Clarksville to Red river; including fifty-four counties in whole or in 
part.’ 'The following year explorations were continued by the Survey, and 
a large amount 'of valuable material has been collected. The geologic 
features of the basin have been studied, the assoeiation of the lignites with 
the iron ores worked out, a number of analyses have been made to 'deter- 
mine the economic value of the coal, and it is now beyond question that 
the lignitic basin of the east will be in the future an extensive iron and 
coal producing district of the State. This report is intended to call the 
