Document nm6Y6oRjbVp8dYDw3wY8wpxjm

r ... o 5il . i C-.r.'u^rr Irotoccicn nvl rrr**I tenner,la I real Mi Service I XT TTTVt 50? xy.ux*x.m=x:: v-c ^n^-c^zx Tttvirc'.wvital Control Ain; n * s t ret(on February 23,. 1935 yart ef oot cctitltwiltv* mvI r* mitc1 ftnSira o esliesfcca rc-ccra;i7j<; plants \rc bnv pye'isreui ib.n crrsc.Yird table r.iv'.PS ritrb'rs of T/cs-rls lit our rtudy vlm rcacd to'various cv'r.ecntratip;* tanr.es of cabostea The corcannrsfclcrj* trre lvtu is fiber?/r:t lon^-r then S-.i no thefc they way be ccr.oiu-nd v:Ln il;r> rto2-:,'r*!3 77.7 Ccc.\i^aticnr.l h'Jjlcs* focicty tlyr.icne it-atiravt) ovprcpsen in there irtrc* 5r~ thesa standards rnn vn-.iJd ?:~r.bar that cc:*csut vsr.on- i-.slew ? flii-m/sl era pvcSi.aly r-vfa, end ccr-ncntrr.t;na abav* 1? Clbrre/ul era rr.bibly JVeu vill cate that met of fcUa expesure;* arc r.lreedy fcalcxj 12 fSberc/nl, * *Ycv eheuM have oodles of our vc-yorto on y.^ur t-Icnt In ycur file* If they tviva tarn w-r-ylsaft-J, or yea vicli further ic ferns tie*, plenoe let vs teisw* Cher* ,i coTiirnf.rati'rnn era u-t llrt-cd yau n-ny /lanema that Minea ere double tea >i3t fiber c me cut. rr t i ov-r) One can cae that lcn t!>r.n 1C* of M.-s trtri-.eira oto try exposed to c tween- tratiorjs abtrra 72 fiber;:/;;.!, } evaesurvo r.-v>v,a rMo level tcu exist In yovr plco.t, x/e feaj-e that every effort ran ha esse to reduce ___ r. . fSnecrciy yrorn, *LL024a76~7 _.__i Fnvr.rd r. Ayer Chief, rjivlreir.vantcT Activities field fitter; ftveau vf Crc'JT'^iLi.tvml fnfoty ar<< t*. a 111 Tt ...~~' T,,?> Ti \f VK , * ; - . oV ~ 4 */^t-*-***/* r*s /*>% Hu S. /N--`