Evidence has been accumulating to establish definitely the fact that goitre is due to a deficiency of iodin in the food and water taken into the body. Dr. J. F. McClendon, Professor of Physiology in the University of Minnesota, and Joseph C. Hathaway have completed an analysis of food found in goitrous and non-goitrous regions. In regions where goitre did not prevail the iodin content of the food may be as much as 100% higher than in goitrous regions. The investigators also analyzed the water from various cities in the U. S....
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