Document GzXveV3x4d2oVv44a7vbx00Rv

Jtoy a>, I9kx Mr. J, L. Stacker E. 1# d?ont d Smsours and Co. DuPont Building VlUjalrif; ton Delttwar'S Dour fir* Stocker? %hen I staa in Haw York ;ednedy, I stopped in to 000 John Bellsafer ami in quired a to the progress of various itasas of work in connection with the santafmaturing plants, more parti cularly the installation of the Ho tool on a and the project for the new blending plant* l realise that this is a difficult tla for construction work, ami for obtaining any special tfcesaa ox11 equipment* 1 also know that you and all of your people are very busy with a wide variety of things, a the other .hand it occurs to me that Mr* Lawrence, who presumably would have to do or push the greater portion of this work, slight not be looking at the .visit tor In exactly the same manor that X do, and It does not seen unwise, therafore, to atrees the importance of these saltiers frem the point of view of safety, so as to get them as near the. top of the pile of things that have to be don as possible. From time to tine I have discussed with you and Dr. Evans the foot that our margin of safety in handling the hesarda of the manu facturing and blending of Ethyl Fluid la quito narrow. Dr* Evans reports an increasing number of ooo-sion on which -threshold symptoms occur, and I can not but believe, therefore, that the magnitude of lead exposura in connection with & number ox' operations is greater than it should be permitted to remain. Under the strees of the present conditions, the exposure la not likely to be decreased except by taaohanical sse$ms, and the pressure put upon your staff for production is already great and ay bo Increasingly greater. I believe it :a necessary, there fore, in the Interests of reasonable safety to get the Rotoelon installation acccmllshed at the earlto t possible time* In connection with the lead exposure referred to above, we have recently obtained experimental data which demonstrate quite conclusively N226 the longer mn work daily, and she longer period of years they work under conditions of exposure, the mot1 a lead they actually absorb, and the greater la the risk of loud Into?.!cation* *-a you are well aware, wo have had little or no Istprovessant In the Isa sic condi lions of exposure in the lead plants for a msaber of years, and I would consider It very unfortunate indeed If the level of exposure were such that a uuzafcer of oases of poisoning would cozae upon us either s the result of slight Increases in ties or overall length of duration of exposure. ith these Ideas la alnd, X should like to apply every partial# of pressure that Might have any effectiveness in speeding up the i provesaente which we have agreed upon long ago as highly desirable* Very truly yours. K A is j i s Rooert 'a * /Ujhoe , 'j * "i}'* 0022736