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The Autecology of Celtis Laevigata in Flood Plain Forests of Denton County, Texas

Description: This thesis describes the present nature of one facet of some of the flood plain forest stands in Denton County, Texas. The specific purpose was to demonstrate the presence or absence of difference between the Celtis laevigata (commonly known as the hackberry, southern hackberry or sugarberry) populations in stands on Denton Creek and Elm Fork of the Trinity River.
Date: January 1970
Creator: Hander, Lecil B.
Partner: UNT Libraries

Food, Feeding Selectivity, and Ecological Efficiencies of Fundulus notatus (Rafinesque) (Osteichthyes; Cyprinodontidae)

Description: This study was made to further define the trophic dynamics of Fundulus notatus by determining its ration composition under natural conditions, measuring feeding selectivity under various laboratory conditions of prey-species composition and availability, and determining the efficiencies with which F. notatus utilizes ingested chironomid larvae.
Date: August 1970
Creator: Atmar, Gerald Legare
Partner: UNT Libraries

Parasites of the Cricket Frog, Acris Crepitans, of Denton County, Texas

Description: The purpose of this study was threefold. The literature concerning parasites of A. crepitans was to be brought up to date. Contributions to the general body of knowledge pertaining to the parasitic fauna of host specimens of A. crepitans and specifically those found in Denton County, Texas, were to be made. Finally, specimens found parasitizing host specimens of A. crepitans were to be preserved and classified.
Date: August 1968
Creator: Block, Edward F.
Partner: UNT Libraries

A Survey of the Physical Education Programs for Girls in the Affiliated Schools within a Radius of Sixty Miles of Denton Texas

Description: A survey of the physical education programs for high school girls near Denton, Texas to determine the extent of compliance with state law for physical education, the facilities for the program, training of the teachers, type of physical education program, and teaching load of physical education teachers.
Date: June 1939
Creator: Morriss, May
Partner: UNT Libraries

Degradation of Phenolic Acids by Azotobacter Species Isolated from Sorghum Fields

Description: Sorghum plants excrete phenolic acids which reduce subsequent crop yields. These acids accumulate in field soil by combining with soil and clay particles to form stable complexes which remain until degraded by bacterial metabolism. The amount of phenolic acids in soil samples were obtained by gas chromatography measurements, while Azotobacter populations were obtained by plate counts in 40 sorghum field samples from Denton County, Texas. One can conclude that increasing the Azotobacter population in the soil increased the degradation rate of phenolic acids proportionally. It is proposed that seed inoculation will introduce selected strains of Azotobacter into the soil. The presence of Azotobacter should increase crop size in subsequent plantings.
Date: August 1989
Creator: Al-Hadhrami, Mohamed N. (Mohamed Nasser)
Partner: UNT Libraries

Lampsilis teres, Specimen #306

Description: One preserved mussel specimen including the left valve only. The specimen exhibits an elliptical shape; moderately thick shell; white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Date: February 25, 1975
Creator: Pettit, J.
Partner: Elm Fork Natural Heritage Museum

Lampsilis teres, Specimen #307

Description: One preserved mussel specimen including the left valve only. The specimen exhibits an elliptical shape; moderately thick shell; white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Date: February 25, 1975
Creator: Pettit, J.
Partner: Elm Fork Natural Heritage Museum

Lampsilis teres, Specimen #308

Description: One preserved mussel specimen including the right valve only. The specimen exhibits an elliptical shape; moderately thick shell; white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Date: February 25, 1975
Creator: Pettit, J.
Partner: Elm Fork Natural Heritage Museum

Lampsilis teres, Specimen #309

Description: One preserved mussel specimen including the right valve only. The specimen exhibits an elliptical shape; moderately thick shell; white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be very-long dead when collected.
Date: February 25, 1975
Creator: Pettit, J.
Partner: Elm Fork Natural Heritage Museum

Lampsilis teres, Specimen #304

Description: One preserved mussel specimen including the left valve only. The specimen exhibits an elliptical shape; moderately thick shell; white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be very-long dead when collected.
Date: February 25, 1975
Creator: Pettit, J.
Partner: Elm Fork Natural Heritage Museum

Lampsilis teres, Specimen #305

Description: One preserved mussel specimen including the left valve only. The specimen exhibits an elliptical shape; moderately thick shell; white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Date: February 25, 1975
Creator: Pettit, J.
Partner: Elm Fork Natural Heritage Museum

Lampsilis teres, Specimen #362

Description: One preserved mussel specimen including the right valve only. The specimen exhibits an elliptical shape; moderately thick shell; white internal coloring; brown external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be very-long dead when collected.
Date: October 8, 1972
Creator: Pettit, J.
Partner: Elm Fork Natural Heritage Museum

Lampsilis teres, Specimen #363

Description: One preserved mussel specimen including the right valve only. The specimen exhibits an elliptical shape; moderately thick shell; white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 100 - 120 mm in length and was assessed to be very-long dead when collected.
Date: October 8, 1972
Creator: Pettit, J.
Partner: Elm Fork Natural Heritage Museum

Lampsilis hydiana, Specimen #354

Description: One preserved mussel specimen including both the left and right valves. The specimen exhibits a rhomboidal shape; thin shell; double looped beak sculpturing; white internal coloring; brown external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be recently dead when collected.
Date: October 8, 1972
Creator: Britton, Joseph
Partner: Elm Fork Natural Heritage Museum

Lampsilis hydiana, Specimen #355

Description: One preserved mussel specimen including both the left and right valves. The specimen exhibits a rhomboidal shape; thin shell; double looped beak sculpturing; white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 100 - 120 mm in length and was assessed to be recently dead when collected.
Date: October 8, 1972
Creator: Britton, Joseph
Partner: Elm Fork Natural Heritage Museum

Amblema plicata, Specimen #121

Description: One preserved mussel specimen including both the left and right valves. The specimen exhibits a quadrate shape; thick shell; single looped beak sculpturing; white internal coloring; black external coloring; external sculpturing in the form of ridges. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Date: January 28, 1974
Creator: Britton, Joseph
Partner: Elm Fork Natural Heritage Museum

Amblema plicata, Specimen #122

Description: One preserved mussel specimen including the left valve only. The specimen exhibits a quadrate shape; thick shell; single looped beak sculpturing; white internal coloring; brown external coloring; external sculpturing in the form of ridges. Collected in the Trinity basin. The specimen measures between 0 - 60 mm in length and was assessed to be long dead when collected.
Date: January 28, 1974
Creator: Britton, Joseph
Partner: Elm Fork Natural Heritage Museum

Amblema plicata, Specimen #46

Description: One preserved mussel specimen including both the left and right valves. The specimen exhibits a quadrate shape; thick shell; single looped beak sculpturing; white internal coloring; tan external coloring; external sculpturing in the form of ridges. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be relatively-recently dead when collected.
Date: 1973
Creator: Pettit, J.
Partner: Elm Fork Natural Heritage Museum

Amblema plicata, Specimen #47

Description: One preserved mussel specimen including the left valve only. The specimen exhibits a quadrate shape; thick shell; single looped beak sculpturing; purplish-white internal coloring; reddish-brown external coloring; external sculpturing in the form of ridges. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be relatively-recently dead when collected.
Date: 1973
Creator: Pettit, J.
Partner: Elm Fork Natural Heritage Museum