Document 5DarjvmRDBM9j72nbqbk0n360

* Owens-Illinois Glass Company * rm st at olaj* " X*rAerv 4 Cm* ?*oeocT( Gboiul Ornas Toledo - a kareh 1, 1943 Dr. Leroy D. Gardner, The Saranac laboratory for the Study of Tuberculosis , Saranac Lake, X. Y. Dear Dr. Gardners Referring to your letter of February 23rd. TTe do add the silica in the fom of quarts, and Xray studies which re hare had eondueted at X.I.T. in our study of the structure of the aaterial do indicate tone quarts rer.air.ing. tfe also use a certain percentage, usually 10 to 20 per eent, of Chrysetile asbestos as a reinforcing agent. - Dnder the conditions upder which the reaction eeeurs, we would expeet that the partieles of qtmrts which reaain after the re action is eoapleted would be the larger partielee which had not yet been eeQSuaed in the reaetion by the tine that the available ealciur. hydroxide had all been eonsiaed. If it will be helpful, we can arrange to dissolTe the aatrix so that the partieles of quarts remaining ean be examined independently as to site. Will you give ae an estimate of the eost of sueh portion of the Investigation as we sight expeet to complete during the course of this year for inclusion In eur budget for the remainder of the year. This is merely to conform with the accounting procedures, and is net intended in any way to restriet the scope of the investigational work that should be conducted to investigate7the matter in the aost effective way possible. D. X. Bowes Js Director of Research-