Document wqRw4Kr4pEgBpdmY12MzROovB

C c rlily This Copy To He A True and l-xuel Copy o f die O rin iim l House In die C.ime-.oe M ellon U n ive rsiiv Archives- Confidential Approved. Ip. .Date.JUG l 8jqs? Mellon institute of industria: DEPARTMENT OF RESEARCH IN CHEMICAL PHyI?6^S D/VfSion Rec'd. AUG 1 9 1352 Fellow. Mr. J. T, Wnryui I efywahip Nfef,_.fc,25Q Project Durt Analyflff Tndgnity Insurance Cosroanr Project No-----------------_________________________ Date oi Report-- August IS, -1952 NATURE OF REPORT Preliminary. Progress___ Final_______ tmU IM*. (?-l8sil. Quarts, Pe*04, 7a*0a *BgO arc present as minor constituents. The naount of quarts as estiaated frc the filar is b-8 percent. Sample 1383, Ol8f3). Io diffraction Haas appear** on tha fila. UmU Utt. O-Ifttl, > This saaple gives a diffraction pattern like that of staple 1382 except that It la veaker and the Mount of quarts la eatlasted to he 2-4 per r-.'V . cent. t. 'ife ; . * ,, The diffraction patterns given V Maples 1382 and 138k only 4^? represent 20-200 *f the total saaple. Ivan though asbestos any be present \ la considerable aaount in these three ssaples, it cannot be detected because rJ of the very poor diffraction pattern it gives. The quartz content# cannot be specified vith the usual precision because of the superposition of the 3*33 A line by bouglas T. Pitaan , Leroy S. Alexander *** ) Humber ccpift* bads---- .-S--- Humber copies aaildky~2*=^- Date of nailing-- 0 0 T75 7