Letters Sent to Dr. Cecil K. Drinker, July 16, 1924

COPY July 16,1924. Dr. Cecil K. Drinker, Harvard University, School of Public Health, 55 Van Dyke St., Boston, Mass. Dear Dr. Drinker: Thank you for your letter of July 14,with the interesting comments in regard to injection of Undark and zinc into cats. I am sorry that you were unable to make quantitiative determinations of your findings, particularly since the amounts are so minute that qualitative tests may not be reliable. However, there has been some very complete reaearch work done with the injection of Radium into animals and I am going to try to locate some reports for you. We ourht to have copies here but they are missing. There have been no further developments here other than the almost complete closing down of our application Plant for lack of business. Mr. Viedt has not completed the special report on attendance that I think would be interesting. It will come along to you as soon as he can have it completed. Cordially yonrs, President.