Document jN8O7dBBMExKJzmBw7zVJKEnN

PLAINTIFF'S EXHIBIT BRK-37 July 9, 1958 Mr. George H. Reilly Director of Safety National Tube Division U. S. Steel Corporation William Penn Place Pittsburgh 30, Pa. Dear friend George* At the Safety Congress I proaieed to tend you information on porphyrlnt as soon as they ware ainsograpbed. I found this carbon copy in ay file.* io I u wailing it now. Perhaps you hare heard that >ir. Merritt had a stroke and died on Decoration Day. His loss Is greatly felt by this Division and the Coatasalon io trying desperately to find a cos*>eter.t replacement for hi*. Tell Kenny Mor/se that the Huffsan-gas-titration method still stands the test. Recent literature discloses that the least detectable odor of aanonia le less than $ ppa, which is a figure we found in our hotel room experiment. 7ery truly yours. ! .1 t 03 DsWitt Huffman Industrial 'ygiene Engineer a