Record of Geology of Texas, ISS'Z-lSOe. 
225 
Simpson, Charles Torry. 
“To isum up, then, itbese Triassie Unios are evidently not the earliest 
•members of the genus, since they show . divergent characters, which are 
dominant in widely distributed and prominent groups of this genus found 
living at the present day. Thus Unio graciliratus, in its somewhat broken 
and radiating lines, possesses characters now found in an assemblage of 
peculiarl}^ sculptured species of eastern Asia, and the teeth of U. suh- 
planatus have characters like nearly all the .species of the southern hemis- 
phere. The radial beak sculpture is unknown at the present day outside of 
South America and Australasia, while the forms of at least three of those 
species, as well as their interiors, where exhibited, bring to mind most 
strongly the species which now inhabit Europe and western Asia, and a 
small group belonging to tlie Mississippi area.” P. 385. 
354. SiNGLEY, J. A. 
Report of (for 1891). 
Geological Survey of Texas, Second Report of Progress, 1891, 
pp. 78-82. Austin, 1892. 
Contents: Artesia)! 'Well Work. Texas Birds. Texas Pishes. Texas 
Mollusca. The Oyster Industry of Texas. 
“I give you herewith a preliminary section of the well (at lOalveston) 
to a depth of two thou.sand four hundred and twenty-five feet, the depth 
attained to this date (Dec. 31, 1891). No determinations have yet been 
made of the many species of the fossil shells, woods, etc., that have been 
secured, this being deferred until the completion of the well.” P. 78. 
355. 
Preliminary Report on the Artesian Wells of the Gulf Coastal 
Slope. 
Fourth Ann. Rept. of the Geol. Surv. of Texas, 1892, Pt. I, 
pp. 85-113. Austin, 1893. 
Contents: Chapter I. The Galveston Deep Well (3070 feet). Gal- 
veston Deep Well Section. Chapter II. Artesian Wells of the Coastal 
Prairie Region and Tertiary \Belt of Texas. Galveston City and 
County: Brush Electric Light and Power Company’s Well. Galves- 
ton City Railway Company’s Wells. Galveston Cotton and Woolen Mill’s 
Wells. Texas Ice and Cold Storage Company’s Well. Gulf, Colorado 
and Santa Fe Railroad Well. National Cotton Oil Company’s Well. Bag- 
ging Factory Well. Rope and Twine Factory Well. South Galveston 
Land Company’s Wells. Wells on the Main Land: North Galveston. 
Pairwood Well. Gulf, Colorado and 'Santa Fe Railroad Company’s Well at 
'Hitchcock. J. Tarquard’s Well near Hitchcock. Judge R. T. Wheeler's 
Well near Hitchcock. Nichols’ Well, Dickinson. Ramie Farm Well, near 
Dickinson. Nolan’s Well, three miles west of Dickinson. Anderson’s Well, 
near Dickinson. C. 'C. Petit’s Well, near Dickinson. Brazoria County: 
Alvin Wells. Velasco Well. Well at Surfside. Nueces County: Corpus 
Christi. Harris County: Wells at Houston, La Porte, Humble, Zimbi. 
Liberty County: Keno. Pplk County: Valda. Fort Bend County: 
