Reports of Investigation

Title	Code Sort descending	Year
Rustler Springs Sulphur Deposits as a Source of Fertilizer	RI001	1946
Ouachita Facies in Central Texas	RI002	1948
Successional Speciation in Paleontology: The Case of the Oysters of the Sellaeformis Stock	RI003	1949
Correlation of Gravity Observations with the Geology of the Coal Creek Serpentine Mass, Blanco and Gillespie Counties	RI004	1949
Iron Ore in the Llano Region, Central Texas	RI005	1949
Stratigraphy and Petrology of Buck Hill Quadrangle, Texas	RI006	1949
Subsurface Woodford Black Shale, West Texas and Southeast New Mexico	RI007	1950
Geology of the Barrilla Mountains, Texas	RI008	1951
Pegmatites of the Van Horn Mountains, Texas	RI009	1951
Buried Hill at Wilcox-Carrizo Contact in East Texas	RI010	1951
Correlation between Surface and Subsurface Sections of the Ellenburger Group of Texas	RI011	1952
Geology of the Blacklands Experimental Watershed, Near Waco, Texas	RI012	1952
Boundary of the Pennsylvanian and Permian(?) in the Subsurface Scurry Reef, Scurry County, Texas	RI013	1952
Recognition of Hipparions and Other Horses in the Middle Miocene Mammalian Faunas of the Texas Gulf Region	RI014	1952
Geology of Agua Fria Quadrangle, Brewster County, Texas	RI015	1953
The Hazel Copper-Silver Mine, Culberson County, Texas	RI016	1952
High Purity Marble Falls Limestone, Burnet County, Texas	RI017	1952
Stratigraphy and Petrology of the Tascotal Mesa Quadrangle, Texas	RI018	1953
Paleontology of the Rustler Formation, Culberson County, Texas	RI019	1953
Cretaceous of Llano Estacado of Texas	RI020	1953
Geology of Hood Spring Quadrangle, Brewster County, Texas	RI021	1954
Handbook of Cretaceous Foraminifera of Texas	RI022	1954
Phosphorite in Eastern Llano Uplift of Central Texas	RI023	1954
The Faunas of the Riley Formation in Central Texas	RI024	1954
Geology of Cathedral Mountain Quadrangle, Brewster County, Texas	RI025	1955
Lead Deposits in the Upper Cambrian of Central Texas	RI026	1956
Some Uranium Occurrences in West Texas	RI027	1956
Upper Albian (Cretaceous) Ammonoidea from Texas	RI028	1957
Ecological Interpretations of Pliocene and Pleistocene Stratigraphy in the Great Plains Region	RI029	1957
A Preliminary Report on the Stratigraphy of the Uranium-Bearing Rocks of the Karnes County Area, South-Central Texas	RI030	1957
Devonian-Mississippian Transition in Central Texas	RI031	1957
Studies of Cenozoic Geology along Eastern Margin of Texas High Plains, Armstrong to Howard Counties	RI032	1957
Pleistocene Equidae of Texas	RI033	1957
Comanchean Stratigraphy of Kent Quadrangle, Trans-Pecos Texas	RI034	1958
Texas Miners Boost Talc Outpu	RI035	1958
Tertiary Formations of Rim Rock Country, Presidio County, Trans-Pecos Texas	RI036	1958
Mineral Resources of the Colorado River Industrial Development Association Area	RI037	1958
Internal Structure of the Grand Saline Salt Dome, Van Zandt County, Texas	RI038	1959
Correlation of the Ogallala Formation (Neogene) in Western Texas with Type Localities in Nebraska	RI039	1959
Vermiculite in Central Texas	RI040	1959
Stratigraphy of the Blach Ranch: Crystal Falls Section (Upper Pennsylvanian), Northern Stephens County, Texas	RI041	1960
Texas Gemstones	RI042	1961
Mineral Resources of South Texas: Region Served Through the Port of Corpus Christi	RI043	1962
Stratigraphic Names in the Midway and Wilcox Groups of the Gulf Coastal Plain	RI044	1961
Pleistocene Molluscan Faunas and Physiographic History of Pecos Valley in Texas	RI045	1962
A Stratigraphic Datum, Cisco Group (Upper Pennsylvanian), Brazos and Trinity Valleys, North-Central Texas	RI046	1962
Upper Franconian and Lower Trempealeauan Cambrian Trilobites and Brachiopods, Wilberns Formation, Central Texas	RI047	1962
The Hill-Shuler Local Faunas of the Upper Trinity River, Dallas and Denton Counties, Texas	RI048	1962
Pleistocene Geology of Red River Basin in Texas	RI049	1963
Lignites of the Texas Gulf Coastal Plain	RI050	1963