1. For more detailed references can be referred especially to the essay of Barr and Bulger. Only such works are here to be respected which either most recently appeared or otherwise are of particular interest to the questions dealt with in the present study
2. STUDIES OF CALCIUM AND PHOSPHORUS METABOLISM
3. Albright Ellsworth 1929 Journ. clin. investig. VII, 183
4. STUDIES OF CALCIUM AND PHOSPHORUS METABOLISM
5. Barr Bulger 1930 Am. journ. of med. science 449