Letters Sent to Ernest B. Jackson, November 30, 1921

ANSWERED J. M. MAVEO November 30th, 1 9 2 1 Waltham Watch Company, Waltham, Massachusetts, Gentlemen: Atiention: Mr. Ernent B. Jackson, Pur. Agent We have your reply of November 29th and are very much disappointed indeed to learn that it is not possible for you at this time to reaoh a decision a. to using our product "UNDARK" Radium Buminous material. The writer understood at the time of his last visit with Mr. Jackson end Mr. Foster that the sample quantity of "UNDARK", which ve furnished, would simply be applied in production , and com- pared as to smoothness of application, luminosity, etc. and possibly being sent to the United States Burcau of Standards et Washington for comparative tests with other material. We are surprised to learn that you consider it nec- essary to arrange special apparatus for compative tests of Radium Luminous material, and we are wondering what you ean have in mind on this. Ke have at the head of our Physical Researoh Department, Dr. Victor F. Hess, formerly head of the Vienna Radium Institute, to Pro- fessor of Physics at the University of Graz, and one of the foremost Radium physicists in the world. Dr. Hess has gathered together the most successful and latest instrupents and devices developed in several European countries, and our electrolytical and physical laboratories today represent by far the most complete end most modern collection of apparatus for ell sorts of measuring and testing of Redium and its By- Pooducts, also for testing comporative increase in luminosity and com- parative decrease in luminosity of Madlum Luminous material. If you desire extremely scientific tests which your laboratora 18 undoubtedly not in a position to equip themselves for, we shall be very glad indeed if the Waltham Watch Company would consent to sending Mr. Foster, and anybody else they might wish to accompany him, to our laboratories at Orange, N. j.i Dr. Hess will give to them whatever time they may desiré, and will donduct for them whatever tests of comparison they may require. If this cannot be arranged, and if the time at which you can conduct ahatever tests you had in mind must remain indefinite, ve will ask you to return the Radium Luminous material>which we sent to you for testing purposes, this office, marking the package for the writer. We are sorry that you did not see fit to use this material in P.