160 
Teaists ACTIONS Texas Academy of Science. 
Hill^ Eobert T. 
‘‘Zittel refers the genus to the family Cornuspiridae, of the Foraminiferse, 
and says that it is a Jurassic genus.” 
Its ooeurrenee in the Comanche series of Texas is the first noted in 
America. 
226. 
Exploration of the Indian. Territory and the Medial Third of 
Eed Eiver. 
Amer. Geologist, Yol. YI, pp. 252-253. Minneapolis, Oct., 
1890. 
A letter descriptive of a Reoonnoisisance in Northern Texas and Southern 
Indian Territory. “The problems Situdied were ( 1 ) the westward deflec- 
tion of the two Cretaceous embayments of the Arkansas-Texas region, and 
(2) the geology of the interior region upon which the Cretaceous sedi- 
ments were laid down, and from which they were derived.” Tlie follow- 
ing statement is of more than ordinary interest: “It is also evident that 
great dfeturbance has taken place even in Post-Cretaeic times, for the 
Red river flows an a fault through Upper and Lower iCretaeic rocks north 
of Denison with a northern downthrow of nearly a thousand feet.” 
227. 
The Texas Cretaceous. 
Correspondence. 
Amer. Geologist, Yol YI, pp. 253-'254. Minneapolis', Oct., 
1890. 
The object of this letter was to correct a misleading sentence in a review 
of the Author’s “Check list of the Cretaceous Fossils of Texas” (Amer. 
iGeol., Vol. VI, p. 124), which reads :i “The list proves evidently that all 
the Cretaceous strata in Texas are more recent than the English Gault.” 
With reference to this, Professor Hill says: “Nowhere in the list do I 
commit myself to an opinion as to European equivalency, for I become 
more and more, each year, indisposed to correlate our Texan strata with 
those of Europe alone. I do believe in trans-oceanic correlation, when 
trans-oceanic faunas are the isame, but, it has been utterly impossible here- 
tofore to even have a basis of comparison, without such a list as I have 
endeavored to give.” 
228. 
Pilot Knot): A Marine Cretaceous Yolcano, with ISTotes on its 
Petrography by J. E. Kemp. '('See Kemp, J. F.) 
Amer. Geologist, Yol. YI, pp. 286-294. Minneapolis^, Kov., 
1890. 
This paper, illustrated with maps and flgures, deals with “an interesting 
occurrence of ancient volcanic phenomena in the vicinity of Austin, Texas. 
-X-, -If «•*.-»* 
“Among the varied topographic features about Austin are some low 
rounded hills which, appearing above the horizon of the Black Prairie 
