Document By4GpzdrmObkpXBq9Y45da7b8

O ct o b er 10, 19^ 7 Dr. Willard Kachle Room Jlk , Chrysler Building lNj.0ew5 Lexington Avenue York 17, New York Dear Bill: TDhra.nkSteyaodumfaonr'syloeutrteler ttwehrichofIOacmtorbeetrur7niansgw. ell as the copy of TbeheaAvalciolaabsleamipnleas aferve/ ndoawysb.einIgmaanya, lyhzoewdevaenrd, ktheeeprethseulrtsesushltosuld until your arrival here unless I hear otherwise from you. Dr. Steadman's report bears out my contention that the mere possession of a spectrograph and she ability to obtain high sensiti vities with pure metallic solutions does not ensure suitable appli cation to biological material, ns you are probably aware, the technique of sample preparation described in Steadman's report is faulty and in spite of the high sensitivity claimed -- 0.002 mpeicrrohgurnadmred--grIatinissbnyotthepopsrsoibceledur0e0 ddeesteccritbeldoss(astshuamnin3goam3icrgor.a..m,ram3 sample being used). Since you are familiar with our technique and our results, I leave cttthhhoeeencqpoerrunodetperseratirtoioonofnnsaelessatossit letohmswatpanlnaods0ys.10a.n.2dmIimctharimoacgrtorsagwamretaimspcfaeinpreedd1r0e0tlthietgacerttar,moauossrfoupIfrroihtnicaseevsdeuaurecriedl.aioimsfed, lIeatmterretoufrnOinctgobtehre7Alcoa duplicate samples as requested in your Cordially yours, JCjegm enol. ccs Dr. Robert A. Kehoe u. Chol&k N14034 7 October 19h7 MKre.tteJaricnogb LCahboolarkatoryUConlilveegresiotyf oMfedCicininceinnati Cincinnati 19* Ohio Dear Jack: preHsuermeewtiiytshosuuleewst*itlelrlhiaforvoecmoaitSofteeenva*td.moann*thetole-wthtoemrwiesanlseocessesnartypfarrotmotfhis notod This is only copy I have* so please return it after, you. have watiththetheAlecAxomacepspeltnaiodnnitn,goGfuatnrhwdeoeorrda*sefHtpeeawrraJsteearmscepoylve*se.r TaIhfseesyeroiouwsehaotovfoeksaemnoonpulgfehisltmceoarltleeprcaiatpele*dr mI atghnienskiumitbwuciludldinbgefoinrteBree;stsiinngcetoI haanvaelyzaesuthsepircaiofntetrhsaatmBpelewsafsroumsedthein the process when it vas operating. All of the sanles should be run for lead. The arrangements for thi3 v-urre discussed with Dr. Kehoe rbttheaemethearmeteripaclstoohsynauendrvthehfoeyavreroemfqAetulhdceeioscatop-hdllaoaesngttahbleeampetnuatrhmpeloaamdsteesesetr.lovdehCsaatrevwaealflseothybreemwpcauiudrlposlenobesteehasemtoaCrfkeiicnsnlguceliaatnnsnusaympts.aiy I should like to tell you again that I thought your paper at Saranac was most excellent. See you soon. Cordially* TEC&netieml.dBr. H. A, Kehoe Willard Machie, . D Ke 001235? N14034.01