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Department of Chemistry, Yenching University, and Laboratory of Physiological Chemistry, Yale University School of Medicine, New Haven, Connecticut
Balance experiments show that when regenerated cellulose is fed as roughage to rats on a 25% intake level, there is no significant increase in the fecal output of calcium and phosphorus. When rats are fed a diet practically calcium free to which regenerated cellulose has been added, there is no evidence of an increased calcium excretion.
2 Now at Wayne University College of Medicine, Detroit, Michigan.
Manuscript received 9 March 1938.