Document Eq4Ey2D9DEw3gGgvKj07wZ7KL

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 Mellon institute of industria: DEPARTMENT OF RESEARCH IN CHEMICAL PHyI?6^S D/VfSion l 8jqs? Fellow. Mr. J. T, Wnryui Rec'd. AUG 1 9 1352 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 eat lasted to he 2-4 per r-.'V . cent. t. ,, The diffraction patterns given V Maples 1382 and 138k only 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 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 'ife ; . * 4^? \ rJ bouglas T. Pitaan , Leroy S. Alexander *** ) Humber ccpift* bads---- .-S--- Humber copies aaildky~2*=^- Date of nailing-- 0 0 T75 7