EDITOR'S FOREWORD In coöperation with the Department of Pediatrics of the College of Medicine, the Division of Nutrition of the Iowa Child Welfare Research Station has begun a series of investigations on the nutrition of infants and school children. The three papers included in this series present the results of investigations regarding the effect of the addition of materials containing the so-called antineuritic vitamin to the milk mixtures of artificially fed infants. A study has also been made of the effect of heat on the nutritional value of milk. In the first paper, the effects of the growth stimulating value of antineuritic material obtained from wheat embryo is shown through consecutive observations in weight on six children ranging in age from one and one-half months to five months. A similar positive effect of the extract of vegetables is shown in the increments of weight of two children. ranging in age from two and one-half months to four and onehalf months. Vegetable soup used as a part diluent in milk showed like effects in the increase in weight of a child four and one-half months old. The second paper reports experiments showing that orange juice not only contains the antiscorbutic vitamin, but its growth stimulating properties appear to be due to the latter vitamin. The third paper gives the results from a series of experiments with animals fed heat-treated milks. The effects on the growth curves of rats are noted when milk is brought quickly and slowly to the boiling temperature; similar comparisons are made with diets of pasteurized, evaporated, and fresh milk. Office of the Director, Iowa Child Welfare Research Station, University of Iowa, Iowa City, Iowa. January, 1921. BIRD T. BALDWIN. |