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COMPARATIVE STUDIES OF SEX DIFFERENCES IN CALCIUM AND MAGNESIUM CONTENT OF SERUM
1 Department of Zoology, University of Cape Town
1. No significant sex differences were observed in the calcium and magnesium content of the serum of the rabbit and the dogfish.
2. In the case of Xenopus and the domestic fowl, females were found to have a significantly higher content of both calcium and magnesium than males.
3. In the crawfish a significantly higher serum magnesium content was found in females.
4. The serum magnesium content of the female dogfish showed great variability.
This investigation was undertaken at the suggestion of Professor Lancelot Hogben, to whose encouragement and advice acknowledgment is made.
Submitted on November 22, 1930
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