The function of zinc in the nutrition of man has been studied by numerous investigators in an attempt to determine the needs of the body for this element. To date no deficiency disease has been produced by a zinc-deficient diet and cured by the addition of this element to the diet. The only criteria thus far presented to establish its essentialness in the dietary of man are the facts that zinc is retained by the body and that its presence is necessary for normal functioning of other nutrients. This study was made to observe zinc metabolism of young college women on self-selected diets, to see if a requirement for zinc intake in humans could be established.

This is a study of the endocrine glands and their influence on the physical characteristics and behavior patterns of adolescents. The purpose of this study is not to present new ideas about the effects of the endocrine glands upon man, but to gather and present the information and data already available and to show how these glands of internal secretion affect the individual in his ability to participate in an educational program, with special emphasis on industrial arts.

This thesis is a study of the campaign tactics of the Arkansas gubernatorial elections as revealed by the 1948, 1950 and 1952 campaigns.

Since thiophene very often yields compounds that are analogous to benzene derivatives in general physiological properties, it was decided to attempt to prepare the nitro and amino derivatives of 1,1,1-trichloro-2,2-bis-(2-thienyl)-ethane (V) as well as the nitro and amino derivatives of 2,2,3-trichloro-1,1-bis-(2-thienyl)-butane (VI).

Limitations in the clinical applicability as well as undesireable side effects of the natural antispasmodic drubs, atropine and papaverine, turned early investigators to the problem of developing a more suitable antispasmodic through synthetic procedure.