311 
REVIEW OF RECENT GEOLOGICAL 
LITERATURE. 
Third Annual Report of the Geological Surcey of Texas, 1891. E. T. 
DuMBLE, State Geologist. Austin, 1892. 8vo, 410 pp. 
Besides the general administration report of Mr. Dumble, this volume 
embraces the following papers: 
Houston County, by W. Kennedy. 
Section from Terrell to Sabine Pass. W. Kennedy. 
Llano estacado or staked plains. W. F. Cummins. 
Notes on the geology of the country west of the plains. W. F. Cum- 
mins. 
Stratigraphy of the Triassic formation in Northwest Texas. N. F. 
Drake. 
Report on the paleontology of the vertebrata. E. D. Cope. 
Shells collected in a dry salt lake near Eddy, New Mexico, by V. Sterki. 
Reports on the Cretaceous area north of the Colorado river. J. A. Taff. 
Trans-Pecos Texas. W. H. Von Streereewitz. 
Of these, the papers that possess the greatest general interest are 
those of Mr. Taff and Mr. Cummins. Mr. Cummins made the entire cir- 
cuit of the area of the " staked plains " and at their western bound he 
left them for a short trip into New Mexico, following the old route of 
travel where Mr. .Jules Marcou passed in 1853 in the service of the 
United States in the survey of the line for the Southern Transcontinental 
railroad. The age of the l)eds of Tucumcari has been a matter of dis- 
pute ever since the report of Mr. Marcou, who made them .Jurassic. 
[See a review of the subject in the American Geologist, Vol. iv, Sept., 
Oct., 1881).] Mr. Marcou's determination has been sustained by Capt. C. 
E. Button, Prof. A. Hyatt and I^rof. Robt. T. Hill, but opposed by Prof. 
James Plall and Dr. .J. S. Newberry. Mr. Cummins collected a great 
number of fossils from the vicinity, but they have not yet been thor- 
oughly studied. He, however, gives a list which have been identified 
with Cretaceous species. 
The following is a list of fossils collected by him from the beds in 
dispute "in the vicinity of Tucumcari and Pyramid mountains:" 
Gryphiea dilotata, var. tucumcari Marcou. 
Ostrea marshii as determined by Marcou. 
Gryphmi. pitcheri Morton. 
Exogyra tcxana Itoemer. 
Ostrea (iiiadriplicata Shumard. 
Trigonia emoryi Con. 
Cardium hillanwn Sow. 
Gytherea Iconensis Con. 
Turrifella seriatim-granulata Roeni. 
Pinna sp. 
Ammnniles. 
Pccteii . 
