Record of Geology of Texas, ISS'Z-ISQG. 
67 
79. Cummins, W. 'F. 
T'ueumcari Mountain. 
Amer. Geologist, Vol. XI, pp. 375-383. Minneapolis, June, 
1893. 
Location of Tucumcari Mountain. iConfusion as which butte should bear 
the name of 'Big .Tucumcari. The author endeavors to show that Prof. 
Marcou was in error in his designation, and that his claim of priority in 
the matter of names is invalid. A plate gives a fac-simile of Marcou’s map. 
80. ^ 
See Dumble, E. T., and Cummins, W. F. 
The Kent Section and Gryphaea Tucumcari, Marcou. 
Amer. Geologist, Yol. XII, pp. 309-314. Minneapolis, Xov., 
1893. 
81. — 
Xotes on the Geology of Xorthwest Texas. 
Fourth Ann. Kept, of the Geol. Surv. of Texas, 1892, Pt. I, 
* pp. 177-238; 5 plates of sections. Austin, 1893. 
Contents: Introduction. General Geology: Seymour Beds; Wild 
Horse Creek; Pecos Valley; Lake on Plains; Tule Ranch; Tule Canyon; 
Forks of Groesbeck; Good Creek; Three miles East of Kiowa Peak; 
'McDonald’s Creek; List of Pleistocene and Recent 'Shells; Tabular View 
of Occurrence of Shells. Tertiary: Conditions of the Country at the 
beginning of the Tertiary; Tule Division; Blanco Beds; Goodnight Divis- 
ion; Loup Fork., Cretaceous: Localities of Fossils. Permian: Wichita 
Division; Clear Fork Division; Double Mountain Division. Economic 
iGeology : Copper. 
^Tn submitting this report of the work done during the past year, I 
have thought it advisable to give a brief itinerary of the trip, in order to 
more definitely describe the localities visited and show their relation to 
each other. 
‘Tt had been demonstrated during my previous trip to the 'Staked Plains 
that there were different epochs of the Tertiary represented in the strata, 
and that a correct understanding of their relations could only be secured 
by a systematic collection of the fossils and a complete stratigraphic sec- 
tion. It was known that the Loup Fork beds, as well as their recognized 
fossils, occurred in places along the Canadian river, in the northern part 
of the Panhandle of Texas; that the Blanco beds, a terrane higher than 
the Loup Fork, were at Blanco Canyon; and that a still newer formation 
than the Blanco was situated to' the west; yet their exact location and 
extent had not been definitely determined. 
Ht was also desirable to have a more extensive collection from the 
Triassic formation, of which the principal outcrop in Texas is at the base 
of the eastern escarpment of the 'Staked Plains., I was also instructed 
to make a more extensive collection of the fossils from the various hori- 
zons of the Permian strata, giving special attention to the invertebrates 
and to the flora. 
