Part One of these hearings before the Select Committee on Nutrition and Human Needs of the United States Senate includes the testimony of scientists and doctors engaged in research regarding the relationship between maternal, fetal, and infant nutrition and optimum mental and physical development of the child. In testimony it was shown that the effect of the mother's nutrition during pregnancy is of great importance to the birth weight and future health of the infant. Low-birth-weight babies are more susceptible to various health problems and enter the world with less of a chance. During the first year of life, the brain and other organs go through a vitally crucial stage of growth, and according to some of the previous testimony, malnourished infants may suffer irreversible mental and physical effects. Part Two of these hearings include the testimony from representatives from the Department of Health, Education, and Welfare and the Department of Agriculture. The testimony concerns what these two Federal agencies have done in the areas of research and actual nutritional services to mothers and infants. Appended materials include statements, letters, tables and various publications pertaining to the testimony. [Parts of this document may not be clearly legible on microfiche due to the size of the print in the original. Pages 84-87 in Part One and 173-88 in Part Two have been deleted for copyright reasons.] (Author/JM)