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Abstract
The ratios for the concentration of chloride in the ocular fluids compared with plasma, based on analyses made in the presence of protein, are 6 to 8 per cent below those observed when the analysis is performed after removing protein, or when the ratios are determined from the distribution of 36Cl administered parenterally to the same rabbits 72 hours before taking samples. The residts suggest that, contrary to earlier beliefs, there is only a slight deficiency of chloride in the posterior aqueous compared with plasma and that this ion exists in slight excess in the anterior aqueous. The steady-state distribution in the aqueous humors is in accord with predicted values based on the rate of accumulation of radioactive chloride.