32 
Transactiojjs Texas Academy of Science. 
Broadi-iead^ Gr. C. 
iCity. iFossil wood on Wolf iMountain. 'Beds of brown sandstone. Con- 
glomerate. Lone Wolf 'Mountain. IStrata compoising it. Section on (Silver 
creek, 'Nolan county. (Relations witli Cretaceous skown. iSummary of a 
boring l/l'lG feet deep on the hill west of Colorado City. Brine. Buffalo 
paths in solid rock. Pot-holes at the forks of Champion creek, lAltitude 
of points westward of ‘Fort Worth. Salt deposits. Depth at Kingman, 
Kansas ; at Lyons, Kansas, .Salt water near Blue Rapids, Kansas. Depth 
of salt stratum at Ellsworth, Kansas. The geological . position of most 
of the Kansas and Texas salt beds Permian. 
21. Call, E-. Ellsworth. 
Tlie 'Tertiary Silicified Woods of Eastern Arkansas. 
Amer. Jour, of Science, III, Vol. XLII, pp. 394-401. ISTew 
Haven, ISTov., 1891. 
(Silicified Wood in the Texas Tertiary.) 
Quotation from R. lA. F. Penrose, Jr., in foot note on p. 399, referring to 
(Silicified Wood in the Sabine River Beds of Texas (See First Ann. Kept, 
of the .Geological Surv. of Texas, p. 24). 
22. Clark, William Bullock. 
A Ee vision of the Cretaceous. Echinoidea of IsTorth America. 
Johns Hopkins University (Circulars, Yol. X, Xo. 87, pp. 75-77, 
Balto., Apr., 1891. 
Among the species considered in this paper are the following from 
Texas: Cidaris T exanus n. sp., Washita Formation of Comanche Series; 
Leiocidaris heniigranosus ('Shuraard), Washita Formation; Salenia Tex- 
ancb Credner, Washita Formation; Pseudodiaema Texanum (Roemer), 
Fredericksburg Formation of Comanche Series; Pseudodiadema Roemeri n. 
sp., Fredericksburg Formation; Pseudodiadema Hilli n. sp., Austin Lime- 
stone; Goniopygus Zitteli n. sp., Fredericksburg Formation; Holectypus 
planatus Roemer, Fredericksburg Formation; Pyrina Parryi Hall, Washita 
Formation; Echinohrissus Texanus n. sp.; Holaster simplex Shumard, 
Washita Formation; Enallaster Texanus (Roemer), Fredericksburg Forma- 
tion; Epiaster elegans (Shumard), Washita Formation; Epiaster Whitei 
n. sp., Fredericksburg Formation; Hemiaster Texanus Roemer, Upper Di- 
vision; Eemiastey' Dalli n. sp., Washita Formation. 
23. 
The Mesozoic Echinodermata o4 the United States. 
Bulletin of the U. S. Geological Surv., Xo. 97, 207 pp., L plates. 
Washington, 1893. 
In this (Bulletin the following species from Texas are described: 
Opliioglypha Texana Clark, Denison Beds of Washita Division of Co- 
manche Series, p. 30; Cidaris Texanus Clk., Washita Formation, p. 3i6; 
Leiocidaris hemigranosus (iShumard), “Washita Limestone,” p. 38; Salenia, 
Texana Credner, Washita Formation, p. 40; Pseudodiadema Texanum 
(Roemer), Fredericksburg Formation of 'Comanche (Series, p. 47; Diplo- 
podia Texanum (Roemer), Frederiolvsburg Formation, p. 48; Diplopodia 
