Letters Sent to Dr. Frederick B. Flinn, June 13, 1925

June 13, 1925. Dr, Frederick B. Flinn, Columbia University, College of Thysicians and Surgeons, 437 West 59th Ste, New Yorle City. Dear Dr. Flinn: Thanks for your note of the 10th. Certainly you may have all the Undark that you wish. We will send along from the and Factory three additional grams. A letter has just come in from the Waterbury Clock Company in reply to one in which I suggested that you be allowed to inspect the operators there. This is the best plant for your purpose, but unfortunately the Waterbury people, as I feared, would rather not go into anything of that sort. There is a paragraph in the Taterbury letter that will be of partidular interest to you which is quoted below: "Cur records show that we first commenced the application of Undark in the latter part of 1919, Since that time we have averaged between fifteen or twenty girls constantly applying this material. At present we have seventeen operators thho have woriced a total of something like 10,000 days at radium painting, The average for these seventeen operators is 629 working days, a little over tiro years employment. One girl has worked 1437 days, almost five years of contimous painting. Three girls have worked over a thousand days, or about three years each, while the others have all worked a year at this worl with the exception of one who has worked but 74 days on painting." They go on to say that during five or six yenrs of experience with radiom luminous material in which several million watches have been painted, they have not "by observation or information had even the slightest hint of any deleterious effects upon employees engaged in this work." Within a week or ten days, lir. Lee of this office is to malce a trip through New Englend. I am asiding him to malte arrangements if possible so thet you can inspect operators at the liew Haven Clock Company and perhaps one or two of the ther manfacturing plants. I can arrange any tinte for you to visit the Luminite Corporation plant in Newaric. There are only a fow operators, but the forelady there has been employed in handling luminous material for about as long as any one in this country. Please let me Jnow when you would like to go to Newark so that I con call up 1r. l'ort and makte the necessary arrangements. Yours truly, ARoeder-HDI President.