Calcium in Blood 



315 



and also after the carbohydrate diet had been decreased. The 

 blood was obtained through the kindness of Dr. Sherrill. 



DETERMINATIONS OF CALCIUM IN BLOOD OF DIABETES BEFORE 

 AND AFTER REDUCED CARBOHYDRATE DIET 



Patient 



Date 



Before 



Date 



After 



Calcium 



Sugar 



Calcium 



Sugar 



MeS 



3-28-22 



5.9 



0.367 



5-18-22 



6.4 



0.157 



Miss L. 



- -22 



7.0 



0.375 



4- 3-22 



7.1 



0.112 



F. R. 



3- 1-22 



9.0 



0.577 



5-18-22 



5.6 



0.129 



R. 



2-22-22 



10.5 



0.441 



3- 7-22 



8.6 



0.159 



B. 



2-16-22 



5.7 



0.652 



2-27-22 



6.4 



0.341 



R, 



2-11-22 



8.1 





3-11-22 



8.1 



0.166 



Calcium determination of the blood of a patient, Mrs. A. G., with osteo- 

 malacia. 



February 8, 1922. (Had been treated with calcium lactate) 10.1 rng. 



February 16, 1922. 9.4 mg. 



February 24, 1922. 11.5 mg. 



March 1, 1922. 11.6 mg. in uterine blood. 



CONCLUSIONS 



In some patients with systemic furunculosis, if the blood is 

 tested at the time an acute boil is present the calcium content is 

 found to be below normal. 



The calcium is below T normal in many young children who 

 have pneumonia. 



Not all of the patients with tetany had low calcium. 



The placing of diabetic patients on a low carbohydrate diet 

 did not affect the blood calcium in any definite manner. 



One patient with osteomalacia had a normal amount of calcium 

 in the blood. 



154 (2114) 



The genesis of gall stones in the dog. 



By PEYTON ROUS, P. D. McMASTER, and D. R. DRURY. 



[From the Rockefeller Institute for Medical Research, 

 New York City.] 



In dogs permanently intubated for the collection of bile, gall 

 stones not infrequently develop despite the absence of infection, 

 stasis and gall bladder activity. The character of the stones has 

 already been discussed. 1 They are always discrete to begin with, 



i RcuSj Peyton and McMaster, P. D., Jour. Exper. Med., 1921 xxxiv, 47. 



