92 
Transactions Texas Academy oe Science. 
Dumble^ Edwin T. 
Quaternary Orange Sands. 
C Iron Ores. 
Tertiary J Fayette Beds. 
(_ Timber Belt Beds. 
P. 319. 
130. , State Geologist. 
Geological Survey of Texas, Second Eeport of Progress, 1891, 
'91 pp. Austin, 1892. 
Letter of Transmittal ( Oommissioner John E. Hollingsworth to Gnovemor 
James S. Hogg). Letter of Transmittal (State Geologist E. T. Humble 
to Hon. Jho. E. Hollingsworth, Commissioner). Contents — ^Beport of the 
iState Geologist. Beport of Mr. W. H. von 'Streeruwitz. iReport of Mr. 
!W. F. Cummins. Report of Mr. Tlieo. B. Comstock. Report oif Mr. W. 
'Kennedy. Report of Mr. J. A. Tail. Report of Mr. J. A. Singley. 
131. , State Geologist. 
Sources of tlie Texas Drift. 
Transactions of the Texas Academy of Science, Vol. I, No. 1, 
pp. 11-13. Dead March 5, 1892. 
“This paper is designed to indicate, only in the most general way, the 
sources from which some of the drift materials have been derived, which 
are found so widely scattered over Texas. 
Four districts are recognized, viz. : Trans-Peoos Texas, the region be- 
tween the Nueces and the Brazos, that between the Brazos and the Sabine, 
and Northwest Texas. The author describes the drift material of each 
area and discusses its oHgin. 
132. , and Cummins, W. F. 
The Double Mountain Section. 
Amer. Geologist, Vol. IX, pp. 347-351; 1 plate. Minneapolis, 
June, 1892. 
Party left Abilene in October, 1889. 'Double Mountain (in reality three 
mountains) is situated in Stonewiall county between Double Alountain 
Fork and Clear Fork of the Brazos river. The expectation was to find 
the contact between the Permian and any Triassic or Jurassic, and the 
overlying Cretaceous. No Jurassic found. A section of these mountains 
is of interest “since it is the most northern point in this northwestern por- 
tion of the state at wliieli the beds of the Lower Cretaceous are exposed, and 
the most easterly exiposure of the Trias which we have been able to recog- 
nize.’’ General Section described. '.Cretaceous. ( 1 ) Caprina Limestone, 
(2) Comanche Peak 'Series, (3) Trinity Beds. Triassic. (3a) Dockum. 
Permian. (4) Shaly Clay, (5) Upper Gypsum Beds, (6) Middle Gypsum 
Beds, (7) Lower Gypsum Beds. 
