It is known that the rays from radium have the power to stimulate all forms of life, even to the extent of speeding up the growth of plants and of making dormant plants burst into bud. Some authorities, as we shall see later, are fully convinced that the radiations can be employed successfully in the prolongation of human life. It is well known that radiotherapy has, for some years now, been employed advantageously in the treatment of many forms of illness, and is, in some institutions, the sole medium for the cure or alleviation of cancer and other malignant growths. Not long ago the discovery was made that the curative agent in certain famous baths in Europe is the radium which the waters of their springs contain. If one could really buy bottled water which has been properly treated with radium rays or the “emanation,” beneficial results would no doubt be obtained. The trouble is that such waters are difficult to secure. “None of the foreign or domestic commercial bottled water sold to consumers on the claim of radioactive content really contains sufficient radioactivity to warrant its purchase,” according to the report of investigation completed by the water and beverage laboratory of the United States Department of Agriculture, Washington, D. C. “In the examination of 46 samples from 15 states and eight foreign countries, the bureau found the highest quantity of radioactivity of a temporary nature in a bottled water from Massachusetts. “The largest amount of permanent radioactivity was in a sample from a deep well in Ohio. It was found, however, that it would be necessary to consume 2,810 gallons of the Massachusetts water, or 1,957 gallons of the Ohio water daily to obtain an efficient dose of radioactive salts. “During the tests radioactivity of samples was determined by means of electroscopes.” When radium is taken in soluble form, 25 or 50 percent of it remains in the body for four or five days. The rate of excretion after that is only about one percent a day. “Wherever it is located, it carries on a constant bombardment in releasing its energy, giving strength to the tissues, cells and protoplasm of the body. And when once these begin to function actively, they begin to rebuild themselves.”