In two cases of infantilism there was poor absorption from the intestines of nitrogen, sulphur, phosphorus, calcium, and magnesium.
The excretion of these elements in the urine was low. The excretion of calcium in the urine was so small as to be negligible.
The excretion of calcium into the intestines was increased.
The complete balance experiments showed that while other elements were retained, calcium was lost.
Analyses of the principal known bases and acids of the feces in cases of infantilism in which excessive amounts of calcium are being lost, and comparison with cases which are normal in this respect, show that the fats, fatty acids, and volatile acids are not high, and lead to the conclusion that the loss of calcium is not secondary to the presence of large quantities of phosphates, fatty acids, or volatile acids.
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