. Biology and man. Biology; Human beings. NORMAL GROWTH CURVE FOR RATS. 4 5 7 8 10 11 12 13 14 15 16 17 18 19 20 21 22 Age in weeks GROWTH AS AN INDEX OF NUTRITION^ Deficiencies in food quickly influence the rate of growth in young animals, which we therefore use for making experiments in nutrition. Rots are most sensitive to deficiencies in diet during the first twelve weeks of life, when they grow most rapidly. The curve shows the average week-by-week growth of large numbers of male(o-") and female {$) rats kept on a suitable diet About a third of the Japanese soldiers were on the sick
. Biology and man. Biology; Human beings. NORMAL GROWTH CURVE FOR RATS. 4 5 7 8 10 11 12 13 14 15 16 17 18 19 20 21 22 Age in weeks GROWTH AS AN INDEX OF NUTRITION^ Deficiencies in food quickly influence the rate of growth in young animals, which we therefore use for making experiments in nutrition. Rots are most sensitive to deficiencies in diet during the first twelve weeks of life, when they grow most rapidly. The curve shows the average week-by-week growth of large numbers of male(o-") and female {$) rats kept on a suitable diet About a third of the Japanese soldiers were on the sick list every year, suffering from this disease. Takaki, a naval surgeon, investigated the con- ditions in the early eighties and decided that there was nothing wrong with the climate or with the sanitary conditions. He suspected the diet. He sent two warships on a long journey. One had the usual rations, in which white, or "polished", rice was the chief ingredient. The other carried less rice, but more barley, meat, vegetables and condensed milk. On the first ship about two thirds of the men suffered from beriberi, and several died of it. On the second ship only a few sailors became sick, and they were all sailors who would not change to the newfangled diet. The Japanese government im- mediately ordered the new diet for all its soldiers and sailors. The men's ^Adapted from Teaching Nutrition to Boys and Girls by Mary S. Rose, The Macmillan Company. After "The Influence of Food upon Longevity" by Sherman and Campbell, Pro- ceedings of the National Academy of Science, Vol. 14. 105. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gruenberg, Benjamin C. (Benjamin Charles), 1875-1965; Bingham, N. Eldred (Nelson Eldred), 1901-. Boston, New York, [etc. ] Ginn and company
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