Document NGjGLJBZKop8Qqon37mYb0BGb

January 3.6* 19*10 Colonel Vollenweider Oberfeldarzt* S e m Switzerland Dear Colonel YollenwelAer} > I have received a oonasunl*** cation from Hr, F, K-, 3, Tagner of the Associated isthyl Company Ltd,# giving me briefly the results of hie con versation with you concerning the ical supervision of sen who will he engaged- by the Swiss A m y to mix ftthyl m i d with gasoline for aeronautical purposes It Is my purpose to- supplement* so far as possible* the information which Mr, Tegner gave'you concerning this work. If* at a subsequent date* you should wish to infom me as to the doctor who will be put in charge of those m m , X should be glad to communicate with him and give- -bln any further information- which he might require# 1 believe Mr* fegner has supplied you with certain information concerning the occupational hazards of this work, 1 merely wish to say in addition that it has been our experlene9*after some considerable period of the operation of those mixing plants* that if the plants are kept In perfect order and if the men carry out the work in strict accordance with the regulations which have been Issued* there will be no danger of their absorption of lead or of their developing any -illness as a consequence thereof. It has been our purpose in designing the equipment and in develop ing the regulations to prevent completely ell exposure. Accordingly the regulations are act up in ouch a way that they should be carried out in every detail# It le quite obvious that under military conditions* it may be difficult to carry out this regime# On the- other hand it is quite certain that the greatest factor of safety lies in the attention to these details and following the instructions precisely. There have been some difficulties freest time to time as the result of the anxiety of workmen concerning the danger of handling gasoline, This problem* X believe* has been studied with such critical care that we can not state with certainty that there are no dangergs of load absorption In connection with the handling of gasoline containing lead in conncotionions up to and including k oo per r -- >* Am t rlorn gallon. dome observation have also been sad on gasoline eontaittlng 6 ec per Am r Lom gallon* and fee?* too we feel Quit eertain that th~ art m dang* either as the result of skin eontact with the gasoline* or the Inhalation of its vapors. Coneentratl ns above this level may oooaslnally be used for aeronautical purposes but o M e f l y for agmrlaantal purposes* w do-.not rsaoimettd that such oonoeiitmtlons be used regularly* and m feel that even when they are used xperimentsliy* they should be handled with considerable are. Accordingly we-attempt to restrain enthusiast! persona who wish to employ these higher concentrations. In oonoluelon may I say again that if any difficulties arias In your mind or In that of the physician you have oliosen, 1 should be pleased to have him get in touch with me* Moreover, as soon as X can obtain translations of our articles Into Carman, which were nearly completed at the outbreak of the war, X shall be glad to forward the to you or to the doctor who you m m in con nect -an with this work* Very--truly yours, pa s { is cc Mr. Tegner . Robert.ft.'7FeKoeT"^ ^ * M E 001.35.6$