Record oe Geology of Texas, IBS'/-] 896. 
239 
383. Taff, J. a. 
Report on the Geology and Mineral Resources of Trans-Pecos 
Texas. 
Chapter V. ‘The Cretaceons Deposits. 
Second Ann. Rept. of the Geol. Surv. of Texas, 1890, pp. 
714-738. 1 plate of sections. Anstin, 1891. 
iContents: .Lower Cretaceous iseries — Trinity division; Frederick^urg 
division; WasLita division. Upper Cretaceous series — Lower Cross Tim- 
iber or Dakota division ; Eagle Ford or Benton iShale division. Concluding 
remarks. 
“The iCretaceous strata which were studied during the present year in 
El Paso county are embraced within an area of one hundred and eighty 
square miles, having a width of twelve miles north and south and a length 
of fifteen miles east and west, with a point one and one-half miles east of 
Sierra Blanoa Junction as the centre of the east side. 
“The roekS' of this formation appear here principally in apparently 
detached ranges of hills rising above the general level from three hundred 
to seven hundred feet, usually having their eastern or northeastern faces 
quite precipitous, a flat top or mesa of greater or less area, and a gradual 
slope towards the west or southwest down into the surrounding plain. The 
connection between these different exposures is generally obscured by the 
drift of the great flats which stretch around them on every side, and adds 
much to the difficulty of their study. A glance at the map accompanying 
this Report will give relative position of the localities to be described.” 
P. 714. 
384. 
Report of. 
Geological Survey of Texas. Second Report of Progress, 1891, 
pp. 70-77. Austin, 1892. 
Contents: Introduction. Work in Southwest Texas. Artesian Water. 
Building Stones. Soils. Irrigation. Work in Central Texas. Building 
iMaterial. Road Material. Soils and Marls. Artesian Water. Irriga- 
tion. 
“The following is intended only as a brief resume of the principal 
economic results obtained during the work of the field season of 1891, the 
details and general geology being left for the Annual Report. The first 
portion of the season was spent in a reconnaissance of Southwest Texas 
under instructions to examine the artesian water conditions, more espe- 
cially south of the Southern Pacific Railway, between Corpus Christi and 
the Rio Grande. The remainder of the field season was employed in a 
detailed study of the Cretaceous deposits of Lampasas, Burnet, and Wil- 
liamson counties, with special reference to their economic values.” P. 70. 
