INDEX. 
Page. 
Stcmite-trachyte, occurrence of 94 
Ulanis.W. II., work of 67 
fcnalyses, coal 60, 61 , 64, 65, 66, 87, 88 
coke 88 
lignites 66 
pantellerite 93 
quartz-pantellerite 92 
Vnacacho formation, section of 31-32 
stratagraphic position of 31 
variations in character of 34 
Lnacacho Mountains, Kinney County, fig- 
ure showing section of 32 
section of 31-32 
^.shbumer, C. A., cited on coal at El Paso . 86 
Asphalt Falls, section at 34 
Itascosa County, analysis of lignite from.. 66 
Athens, analysis of lignite from 66 
Lustin, thickness and character of Taylor 
marls near 34 
Austin chalk, fossils found in 19-20 
section of, Anacacho Mountains 32 
occurrence and character of 19-20 
Jalcones escarpment, altitude of 14 
$asalt, description of 95 
tassett, C. C, aid by 78, 83, 84 
Jrackett, fossils found 20 miles west of 17 
thickness of Eagle Ford formation at. . . 19 
thickness of Buda limestone near 18 
.racks Canyon, description of 82 
plate showing view of 82 
5ray, W. L., work of 15 
work with 11 
iregg, G. , information furnished by 57 
section furnished by 23 
;uda limestone, occurrence and character of 18 
lurr's ranch, fossils found near 25-26 
alvert bluff, analysis of lignite from 66 
ampbell, J. W., section furnished by 50 
annel Coal Company, analysis of coal from 
mine of 65 
record of prospect drill by 41-42 
section at mine of 44 
aprina limestone. See Edwards limestone. 
arbon, record of prospect drill near 41-42 
arrizo sandstone, occurrence of 54 
arrizo Springs, plate showing artesian well 
near 52 
reconnaissance between Santo Tomas, 
Uvalde, and 50-51 
reconnaissance from Eagle Pass to. .30-:'.l . lii- 17 
reconnaissance from San Lorenzo Creek 
to 47 
relation of Cretaceous to Eocene be- 
tween Eagle Pass and 35-36 
section of well near- 50 
Bull. 164 7 
Page. 
Cavender,G.G., information furnished by.. 50 
Chacon Creek, character of surface near ... 28 
Chandler, W. M., cited on coal at Eagle 
Springs 86 
Chapman, R. H., aid by 83 
Chispa, fossils found near 84 
location of 73 
plate showing view of Vieja Mountains 
from 76 
report on igneous rocks from vicinity of 
San Carlos and 88-95 
sections near 76, 84 
topography near 74 
Chupadero ranch, sandstone at 37 
Cline, reconnaissance from Eagle Pass to .. 28-30 
Coal, age of Cretaceous of Colorado 86 
analyses of 60, 61, 64, 65, 66, 87, 88 
character of 60-61 
importance of, in Texas 11 
occurrence of 62, 86 
thickness of 57 
j Coal fields in New Mexico and Texas 11-12 
Coal series, fossils found in 25-26 
occurrence, character, and thickness 
of 22-2.6, 28 
Coke, analyses of 88 
Comanche series, consideration of 16-18 
Comstock,T.B., work of 71 
Cope, E. D., work of 67 
Cow Creek, exposure of Austin chalk on. . . 19 
fossils found on 19-20 
Cretaceous, course of boundary between 
Eocene and 53 
plate showing contact of Eocene and.. 50 
relation of Eocene to 35-36 
Cretaceous rocks of the Eagle Pass coal 
field 15-37 
Davis, D. D. , acknowledgments to 44 
aid by 14,40,44,45 
reference to 63 
statement by 42 
Del Rio, Del Rio clays near 17 
Edwards limestone at 16 
fossils found near 17 
section near 17 
Del Rio clays, fossils found in 17 
occurrence and character of 17 
hold i. L.,map furnished by 56 
sections furnished by 57 
Dolch, L. F., & Co., prospect shaft of 24 
Dumble, E. T., cited on age of Escondido 
beds 27 
cited on analysis of coal H5 
cited on designation of Eagle Ford form- 
ation 19 
97 
