218 



Scientific Proceedings (121). 



are more susceptible to tetany after thyroidectomy and partial 

 parathyroidectomy than normal dogs. Although in the experi- 

 ments by one of us 1 in studying the influence of thyroidectomy and 

 partial thyroidectomy on the gastric mucosa, tetany never oc- 

 curred while leaving in situ 2 or 3 parathyroids; the occurrence 



Fig. 1. Dog 100, 93 days after thyroidectomy. 



of mild or severe attacks after this procedure was the rule in our 

 diabetic dogs. We were able to observe in one diabetic dog a 

 palliative effect on tetany from calcium lactate injections as pro- 

 posed by McCallum 2 .and Voegtlin with parathyroidectomy in 

 non-diabetic dogs. The following experiments will show the in- 

 fluence of tetany upon the glycosuria in diabetic dogs and the 

 opposite effect of the thyroid. 



1 Friedman, G. A.. Jour. Med. Research, 1918, xxxviii, 69/ 



2 McCallum. W. G.. and Voegtlin, Carl. Jour. Exp. Med., 1909, xi, 118. 



