The reasons given for opposing the artificial fluoridation of public water supplies as a means of combating tooth decay are: (1) The cause of dental caries is not fluorine deficiency but complex dietary deficiencies and wrong eating and drinking habits, (2) Some individuals may consume up to 40 times more water than others and way thus ingest 15 mg. of fluoride daily instead of the recommended 1 to 2 mg., with disastrous effects on their health, (3) Fluorine is the most dangerous poison known to us from the chronic toxic point of view, and it disturbs the normal metabolic processes in our bodies. It has a tendency to accumulate in the body. It prevents calcium from performing its essential physiological functions, (4) Fluoridation has been declared illegal and has been discontinued in Sweden and Holland and as well as in many cities of the U.S.A., England, Germany and Austria.