Letters Received to H.H. Barker, July 15, 1932

UNIVERSITY OF MISSOURI COLUMBIA DEPARTMENT OF CHEMISTRY July 15th, 1932 Mr. H. H. Barker 346 Richmond Avenue South Orange, New Jersey My dear Barker: I thought it would interest you to hear about one of the tests we made while we were at El- gin late in June. Mr. Armstrong was kind enough to bring out Mr. Rapp of Evanston; you will remember Mr. Rapp as the young man listed as Case No. 9 in our report of the work we did in Dr. John's office two years ago. Mr. Rapp at that time had a total activity which we reported between 10 and 18 micro- grams. This second measurement showed no decrease in astivity and when we questioned Mr. Rapp, he stated very positively that he had not had any radium treatments since the time you and I made our measure- ments. His case is thus an outstanding one of reten- tion of radium, marked by great permanence. None of the patients in Elgin showed any such high degree of retention. Since our visit to Elgin we have had some correspondence with Mr. Arnstrong regarding Mr. Rapp's case, and he has taken pains to find out about the possibility of his having obtained radium inter - nally through the drinking of mineral water. Mr. Armstrong sent us a sample of the mineral water Mr. Rapp has been taking for some time. We tested this very faithfully and found no trace of activity. We are thus somewhat puzzled about the outcome. I may say that I have gone over our old record which we made and Mr. Morris and I have gone over the recent record; and we are quite sure that this is not an accidental mistake in measurements for all measurements were made twice, so we have checks on both gamma ray and expired air measurements. Sincerely yours, Herman Schlendt Herman Schlundt. hs.as