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Journal of Nutrition Vol. 13 No. 1 January 1937, pp. 51-64
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An Improved Technic for Metabolism Studies in Pre-School Children with a Statistical Determination of Its Reliability1

One Figure

Jean E. Hawks, Marie Dye and Merle M. Bray

Section of Home Economics, Michigan Agricultural Experiment Station, East Lansing

The procedure used in two balance experiments conducted in this laboratory is described. Some of the precautions taken may suggest improvements in technic which might eliminate some technical errors and make results more constant.

The composition of diets containing the same food and prepared under standard conditions varied not only from period to period but also between duplicate diets collected on the same day. Nevertheless, the coefficients of variation for calories, nitrogen, calcium and phosphorus were not large, ranging between 1.6 and 3.1.

1 Published from Michigan State College Agricultural Experiment Station as paper 263, new series.

Manuscript received 13 August 1936.




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