The purposes of this study are to make an investigation of practices used in a number of selected schools in selecting library materials for the school libraries and to evaluate these practices against criteria developed from a study of recommended standards and practices in the fields of library science and education.

This research problem concerns a follow-up study of seventy-nine boys who have undergone extensive therapy and supervised training in group-living over an extended period of time at Camp Woodland Springs, Dallas, Texas. The problem under consideration is one of determining the operating efficiency of this institution in its main purpose of rehabilitating boys who have generally lacked the social and personal skills necessary to satisfactory adjustment in their respective environments.

The purpose of this study is to make a comparative analysis of the development of high school library standards since 1918 by taking into consideration the factors of rapid growth of high school enrollments, modifications of the basic philosophy of education, and the development of secondary school libraries.

The primary purpose of the study was to determine, scientifically, if there is any significant difference between the ability of boys in the seventh grade and the ability of girls in the same grade to retain arithmetical ideas, facts, and processes. A second purpose was to investigate the causes of differences that were found to exist.

The over-all purpose of this study is to determine the ways in which children differ from one another as related to the instructional program in the school, to point out ways of taking care of individual differences in the learning situations in the classroom, and to apply these principles to the teaching and learning of arithmetic in the higher grades at the elementary level.