Helen S. Mitchell

"A previous publication reported the occurrence of in the eyes of all rats fed on rations containing as the chief source of . Negative results with other carbohydrates tested led to an investigation of as the next logical step. This sugar was fed to young rats at 35% and 25% levels corresponding to the galactose available from the 70% and 50% lactose rations fed in previous experiments. Four rats on the 35% galactose ration developed mature bilateral cataract in 12, 14, 14, and 37 days respectively (average 19 days), whereas those on the 25% galactose ration were somewhat more delayed. The average time for the development of mature bilateral cataract in 49 rats fed the 70% lactose ration was 10 weeks, approximately 4 times as long. Controls fed on the 70% starch ration showed no eye changes."

"... Even minor during the growing period may prevent full potential growth from being attained. ... Growth potential is not a thing that can be speeded up and lowed down and still obtain the same end results. According to ..., if one does not use the full potential alI the way along, one does not achieve full development. The same ultimate weight may be reached but not the ideal shape and composition. If the rate of growth is sufficiently slowed down, the adult is not only smalI but under-developed with normal or nearly normal head size, moderately retarded trunk and relatively short legs."

"(quote from p. 521)"

"Remember that there were no in the 1920's, and every had to depend on a few recognized authorities for estimates of needs of children. In 1923, called attention ... to the protein needs for optimal growth in rats which he estimated to be about 15 per cent of the calories. He contrasted that with which provides only 7 per cent of the calories in the form of protein, to provide for the growth of the infant. He also emphasized what and had demonstrated earlier that animal proteins were more efficient for growth than plant proteins."