The purpose of this study is to provide a measurement of selected parental attitudes and an evaluation of the effectiveness of Parent Groups as instruments for promoting attitude changes in a positive direction.

Laboratory and field investigations during the past ten years have demonstrated that certain microorganisms can cause deleterious effects in jet fuel tank systems. These investigations have brought about new concepts concerning the mechanisms of utilization of certain constituents in jet fuel tanks by microorganisms. Since the presence of microorganisms is inevitable in fuel systems, research efforts have been directed towards identification and determination of the types of microorganisms which can utilize jet fuel hydrocarbons, fuel additives, polyurethane foam structural materials, and particular hydrocarbons present in the fuel.

In this study, branchiobdellids were collected from crayfish captured from two adjacent sites in Denton County, Texas. Identification of the branchiobdellid, Cambarincola vitrea Ellis, was first made and then work was extended to include several topics of ecological interest.

The objective of this study is to determine what knowledge and skills are being required of machinists currently employed in the Dallas-Fort Worth area, and to what extent these may be incorporated and taught in industrial arts machine metalworking courses.