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TESTS FOR RADIOACTIVITY ON MRS. SAXER, (RUTH WINTERS) June 19 and 20, 1930. - The tests were conducted in the office of Dr. Humphries, Orthopaedic Hospital, Orange, New Jersey. The first sories of gamma ray messurements was made June 19, 1930. Another test with the gamma ray instrument wes conducted the following day. The tests for radioastivity of expired air could not be carried out successfully June 19, 1930, on account of the extrome hunidity of the atmosphere; but the noxt day the conditions for making measurements had improved decidedly. The results of these tests leave no doubt in my mind that Mrs. Saxer is distinotly radioactive. The gamma ray test as well as the expired air test definitely establish this conclusion. The expired air test failed to show the presence of nesothorium, but the test for radium are positive. Our quantitative measurements enable us to state that the total amount of radium present in Mrs. Saxer lies betweon 5 to 8 micrograns. Respectfully submitted, Herman Schlundt