Record of Geology of Texas, 1887 - 1896 . 
95 
Bumble, Edwin T. 
amiong ,the clayiS and stands wliicli we have designated the Fayette beds, 
and which are 'probably ot 'Miocene age.” P. 83. 
iFor description of the Fayette iBeds, see Penrose, ‘‘A Preliminary Beport 
on the Geology of the Gulf Tertiary of Texas from the Bed Biver to the 
Pio Grande,” iFirst Annual Report of the Geological Survey of Texas, pp. 
47-58. 
A section on O’Quinn creek, a branch of Buckner Creek, is given, show- 
ing the position of the “volcanic dust” which, in this locality, is imme- 
diately beneath a layer of Brown Coal, “somewhat lignitic in places, but 
generally compact and massive,” and above “Brown Coal, somewhat varia- 
ble, with small inclusions of members of the group of asphaltums.” 
137. 
N^ote on the Occurrence of Grahamite in Texas. 
Trans. Amer. Inst. Mining Engineers, Yol. XXI, pp. 601-605. 
1892. 
('Schuylkill Valley Meeting. Reading, Oct., 1892.) 
“The first specimens of this material which came under my notice, as 
found in the State of Texas, were sent to me by Mr. J. C. Melcher, of Fay- 
ette county, soon after the organization of the State Geological Survey. 
“Later specimens were collected by Dr. Penrose and myself on a trip 
made by boat down the iRio Grande, from Eagle Pass to Hidalgo, in June, 
1889. At the time of collection I marked the substance V4.1bertite,’ doubt- 
fully, but, on examination, -it proved to be nearer Grahamite. 
“The geological horizon of the two occurrences is Tertiary. The first 
locality mentioned is in the upper part of the beds called by us the Payette 
beds, and provisionally correlated with the Miocene, or Grand Gulf of 
Hillgard’s Mississippi section, while the latter is in the lowest strata of 
the Eocene which are exposed on the Rio Grandh river, and which may be 
taken as equivalent to the basal Claiborne, if not lower.” 
Detailed account of the Webb iCounty Grahamite. iSection at Webb 
Bluff. 
Detailed account of the Payette County Grahamite. 'Section at O’Quinn 
'Creek. 
Analyses of these Grahamites by L. E. Magnenat. 
WEBB COUNTY GRAHAMITE. 
PROXIMATE ANALYSIS. 
Moisture O.BO 
Volatile Matter 44.00 
Fixed Carbon 52.80 
Ash 2.90 
100.00 
Total Sulphur 5.42 
ULTIMATE ANALYSIS. 
Carbon 78.65 
Hydrogen 7.50 
Nitrogen 0.15 
Oxygen 5.08 
Sulphur .5.42 
Ash 2.90 
Water 0.30 
100.00 
