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Biological Indices of Stream Pollution
Date: August 1952
Creator: Russell, James C.
Description: A thorough biological survey and evaluation is a lengthy and expensive project. The number of technically trained persons required prevent its use by most public agencies. Since public health departments are the groups most frequently concerned with measuring the effects of pollution in streams, a need exists for a simplified method of sanitary survey. Recognizing this need, the Texas Heal Department assigned the writer the problem of devising a method of survey which would require a field party of two and could be conducted entirely from a mobile field laboratory.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc130298/
The Cultural, Physiological, Morphological and Chemical Characteristics of an Actinomycete from Lake Waco, Texas
Date: January 1954
Creator: McCormick, William C.
Description: The purpose then of this paper has been to expand our knowledge of these aquatic forms by investigating the cultural, physiological, morphological, and chemical characteristics of an actinomycete isolated from the water supply, Lake Waco, of Waco, Texas.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc130361/
An Investigation of Selected Factors Related to the Professional Status of the Science Teachers in the Four-Year Accredited High Schools of Texas for the School Year 1952-1953
Date: August 1953
Creator: Whitehead, Oren W.
Description: The purpose of this study is to gather information related to the professional status of the science teachers in the four-year accredited high schools of Texas for the school year 1952-1953. The principal concern of the study is "Who is teaching science?"
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc130351/
A Study of Selected Factors Related to Permanency in Science Teaching
Date: August 1958
Creator: Lovelace, Allen J.
Description: The purpose of this study is to gather information related to some factors which are considered to be characteristic of science teaching; to attempt to identify some elements of permanency in science teaching; and to analyze some relationships between the results of the above two criteria with the view of establishing some factors which may be useful as predictors of permanency, or indicative of patterns of permanency, in science teaching.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc108009/
Degradation of Complex Carbon Compounds by Marine Actinomycetes
Date: August 1959
Creator: Willingham, Charles Allen
Description: The purpose of this paper is to present a comparative study of marine bacteria, molds and actinomycetes in regard to their ability to degrade certain pure and mixed complex compounds possibly occurring in the lagoon waste traps of the Texas Gulf Coast. This comparison was made using a differential oxygen uptake as the index of specific compound utilization.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc108067/
Survival and Growth of Bacteria in Chlorine Treated Water
Date: 1957
Creator: Dougherty, J. H. (James H.)
Description: In this problem, an attempt was made to determine the fate of various species of bacteria which had previously been isolated from other sources when inoculated into Denton tap water.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc107959/
Assimilation of Inorganic Nitrogen by Aquatic Actinomycetes
Date: August 1962
Creator: Davis, Ernst M.
Description: It was the purpose of this investigation to present laboratory data concerning the assimilation of inorganic nitrogen by the aquatic actinomycetes. The strains of aquatic actinomycetes under consideration represented a cross section of those currently under culture at North Texas State University.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc108150/
The Adaptability and Present Status of Andropogon Ischaemum L. in Denton County, Texas
Date: 1951
Creator: Belders, Floyd William
Description: This investigation has been made with reference to the adaptability of Andropogon ischaemum, King Ranch bluestem, to various soils, various slopes, and various erosion conditions in Denton County.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc96951/
A Grassland Evaluation of Eastland County, Texas
Date: 1951
Creator: Durham, Norman Nevill
Description: This investigation has had for its purpose the determination of first, all members of the Gramineae (Grass) family found in the county; second, the incidence of each species with the various types of soil; third, the grazing value of each species; fourth, the life span of the parent plants; fifth, the present grassland status; and sixth, the potentialities of developing desirable grassland.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc96957/
Microflora Found in a Selected Group of Food Products Enclosed in a Protective Wrapper
Date: 1949
Creator: Ogden, William H.
Description: The purposes of this study are, first, to determine relative numbers and predominant types of bacterial organisms in the various food products studied; second, to evaluate the efficiency of the paper coverings of these foods; and third, to determine whether these products are potential sources of food poisoning.
Contributing Partner: UNT Libraries
Permallink:digital.library.unt.edu/ark:/67531/metadc96850/