H. B. van Dyke 



329 



TABLE III. 



Quantitative Determination of Iodine in Whole Gland and in Cells Free from 

 Colloid Material of Thyroid Glands of Iodine-Fed Dogs. 



After feeding daily. 



Human Glands. 



The distribution ratio of iodine between cells and colloid mate- 

 rial was determined in thirteen human glands obtained from 

 operative cases. 5 In Table IV are given the results of the anal- 

 yses of the human glands together with the clinical diagnosis 

 made in connection with ten of the cases. 



It will be seen that most of the thyroid glands reported were 

 clinically diagnosed as toxic goiters. Considerable variations in 

 the ratio value occur and do not appear to be related either to the 

 iodine content of the gland or to its morphology. The ratio 

 value of No. 22 is inexplicably high. In the human gland 

 series, however, as in other gland series previously reported, the 

 ratio variations are of a much smaller magnitude than the varia- 

 tions in total iodine content. So here too the ratio is fairly 

 constant despite variations in morphology and iodine content. 



6 Through the courtesy of Dr. C. B. Davis and Dr. A. D. Bevan of the 

 Presbyterian Hospital, Chicago, and of Dr. A. J. Ochsner of Augustana 

 Hospital, Chicago. 



