Document ZJ4Lbv77G609MkmKYLbz4MM9V

r e p r o d u c e d at t h e national a r c h iv e s * : 'r W i- . r W W t :v SHF \v M - 7- __ _ % '4 ^ % ''ftm w 'M , WHEN YOU HAVE FINISHED READING THIS POST IT ON YOUR BULLETIN BOARD In d u s t r ia l H y g ie n e B u l l e t in PUBLISHED BY THE NEW YORK STATE DEPARTMENT OF LABOR 124-E.-28th ST., NEW YORK CITY BERNARD L. SHIENTAG--INDUSTRIAL COMMISSIONER Vol. I ISSUED MONTHLY BY THE BUREAU OF INDUSTRIAL HYGIENE--LELAND E. COFER, M.D.. Director DECEMBER, 1924 No. 6 A WORD ABOUT TETRAETHYL LEAD POISONING Tetraethyl lead poisoning recently has attracted so much public attention that it is most important that this type of acute poisoning should be differentiated clearly by symptoms from ordinary chronic lead poisoning The symptoms are absolutely different. Tetraethyl lead poisoning in its worst form gives an acute encephalopathy. Autopsies reveal an injection of the meninges of the brain, particularly at the base, with also some conges tion of the cortex. The symtoms are both subjective and objective The patient first complains of persistent insomnia, and usually of more or less nausea with vomiting. He feels restless and nervous and tired. He loses all appetite and begins to lose weight. Subjectively, one of the first symtoms noticed is a marked drop in systolic blood pressure, which frequently falls below 100 and sometimes below 90. There may be some diminution in the pulse rate, and in some cases a subnormal .temperature. Lead is found in the stools, and some patients recently examined have shown stippling of the red blood corpuscles, although this is not invariably present. Considerable anemia develops, though no paralysis. In the extremely severe cases there is acute delirium of sudden onset, of the type familiar with delirium tremens. That is with violent jactitation, delusions of persecution, efforts to get up and run amuck, smashing through windows, and shouting with acute maniacal raving. Death ensues from exhaustion. Tetraethyl lead is a remarkably active poison, taking first place among the metallic'poTsons. Tt was first made by chem ists in 1854. Since that time there have been occasional in stances of poisoning of greater or lesser severity among workers in chemical laboratories. Quite recently the possi bility of using this substance in improving the efficiency of all gasoline motors, and thereby conserving the world supply of gasoline fuel by about one-quarter has been discovered. Moreover, the addition of this substance to gasoline would make possible the use of high compression engines. Hence, the attempt to manufacture it on a commercial basis. It should be emphasized that it only can be used in gasoline motors in extremely diluted form, usually 1 to 1000. The possible dangers in the manufacture of tetraethyl lead, however, are three, namely: Through direct absorption through the skin, which takes place with extraordinary rapid ity ; second, through inhalation of toxic fumes, and finally, through accumulation of ordinary lead dust, the latter being capable only of chronic lead poisoning. The chemical substances used in the manufacture of tetraethyl lead are lead, ethyl chloride and metallic sodium. THE MENACE OF PHOSPHORUS FIREWORKS C. -M- S alls, Ph.D., Chemical Engineer Phosphorus poisoning is the most dreaded of all the indus trial diseases, not because it is the most dangerous, for the mortality is only 15 to 20 per cent, nor because it is wide spread, for in this respect it does not compare with lead poison ing, nor because it is sure in its action, for in reality only a small minority of those exposed are ever affected, but because of the great and prolonged suffering caused by the local disease and the shocking deformities which almost always result. For these reasons many states have passed laws which in effect regulate the manufacture, storage, and use of the yellow variety of phosphorus or compositions containing it. The red or amorphous variety is not poisonous. Last June the Division of Industrial Hygiene of the New York State Department of Labor carried out an investigation to determine what hazards are connected with the use of phosphorus in the fireworks industry. It was found that the poisonous variety of phosphorus is used in a red composition that appears on the market under various trade names, such as " Spit Devils," " Son-of-a-Gun," and " Devils-on-the-Walk." When ground under the heel on the sidewalk they continue to crack and spit and sputter. The compositions have a strong odor of phosphorus. The writer has several times noted the characteristic phosphorus luminescence rising from the poison ous composition held by the chubby hands of a little child. This luminescent fume is very distinct in the dark, especially when a piece of the composition is freshly broken. Chemical analysis of the red composition shows that it con tains several per cent of yellow phosphorus. The remainder of the composition consists of four comparatively non-poisonous constituents, namely, potassium, chlorate, iron oxide, mag nesium carbonate, and gum arabic. The Division has record of seven deaths of little children who have put the composition in the mouth. It is evident, therefore, that the paper or sand coating and the magnesium carbonate in the composition which are sup posed to act as a preventive and an antidote, respectively, are not effective. In the fireworks factory the workers must handle the com position and inhale the fumes of yellow phosphorus. Three cases of phosphorus poisoning from this source have been reported. The greatest hazard, however, that is connected with phos phorus fireworks is undoubtedly the danger of ignition and poisoning while in shipment or in storage in a mercantile establishment. If the mixture is not prepared with extreme care the finished composition is very sensistive to friction. AL J tu REPRODUCED AT THE NATIONAL ARCHIVES E fiW .'v f ? "<&' ' p R ' yiiiui/Vj v MINES BUREAU fill BY HEALTH SERVICE OF ETHYLGASOLINE Cummmg's Office Disapproves! Report Whose Authors Plead Was Simply Preliminary, Although It Resulted in Marketing Fluid INQUIRY BY GOVERNMENT MAY FOLLOW CONFERENCE Manufacturers Had Potential , Influence Over Original Tests, Assert Critics From The World's Bureau v Special Despatch to The World WASHINGTON/ May 2.--The tln ited States Public Health Service may make an indefieg^eni investiga tion into the use of tetraethyl gaso line following the general conference called here for May 20 by Surgeon General Hugh S. Cunrming, The Question whether its use is a menace to public health has been recognized as so important that the Surgeon General has determined upon a thorough canvass of compe te n t expert opinion first, and then, if it proves advisable, an independent study of the gasoline and its effects upon the human system, v Criticism Canses Action So much criticism has come from disinterested sources--notably from Prof. Yandell Henderson of Yale--of th e alleged inadequacy of tests so far made by the Bureau of Mines and of th e m anner in which the Standard Oil of New Jersey, the General Mo tors Corporation and the Ethyl Gaso line Corporation have been identified w ith th e Bureau of Mines Investiga tion, that the Public Health Service considers it Imperative to make an inquiry along entirely independent lines. The chief criticism has been that , these companies, being the ones | commercially interested in having | the new product pronounced harm1 lees, have potentially, if not directly, { influenced the investigations so far. T h e tests by the Bureau of Mines kave been made "In co-operation w ith thfr General Motors Research Corporation,'' according,, to the b u r e a u 's p u b lish ed reports. Health Service Critical W h ile Bureau of Mines officials are e m p h a tic in sa y in g th eir report nnb- lisb ed last N ovem ber was inron-'iu s iv e and nver war. intended ?> hr j taken as final, officials of th*5 Public H e a lth S e r v ic e are eq u ally c"'"'b IN ETHYL GAS CASE , (Continued From First P age.) of Mines finding as premature and insufficient; Dr. Alice Hamilton, bac teriologist, assistant professor of in dustrial medicine at Harvard Medi cal School; Prof. C. E. A. Winslow of Yale Medical School, Di^ William Henry Howell, physiologist of the School of Hygiene at Johns Hop kins; Prof. Lowenheart of the Uni versity of Wisconsin, Dr. Marshall of Johns Hopkins, Prof. Iteid Hunt, pharmacologist of Harvard Medical School; Dr. Haven Emerson of New York, former President of the Board of Health and Health Commissioner of New York; Dr, William H. Park, bacteriologist- of New York/ Prof. Yandell Henderson of Yale, Dr. Will iam A. Pusey of Chicago, President of the American Medical Associa tion. The Public Health Service has also requested the American Automobile IA ssociation, the . . Nationals . S a fety Council and the American Federation [of Labor to Send-representatives. Ih- Ivitations are being issued to State and City Boards' of H ealth. Representatives of"the E thyl G aso line Corporation, of th e Standard Oil and of General -Motors are to-be asked to present their side of the'case. Dr. Cumming said to -d a y 'th e pur pose wan to make this session as comprehensive as possible, in ordei that all aspects of the pfoblem may be brought out and all the facts ascer Itained. ______ Columbia Ethyl Gas Report Finished, bat Not Given Out A lthou gh experts o f C olum bia LTnivereity are reliably reported to have completed their investigation of tetra ethyl leaded gasoline, their formal re port will not be issued "for some days," Frank D. Fackenthal, Secre tary of the university, said yesterday. Previously The World had learned from authoritative sources the report was being typed Friday, and it was said then it would be turned over to the Ethyl Gasoline Corporation and to administrative officials of the univer sity yesterday. Mr. Fackenthal Intimated the report would be made public in full by the uplverslty. " W e do not keep our scientific work secret," he said, " and when the report is ready for release you m ay expect It to be m ade known generally." H e said he had been inform ed by Dr. Horatio B. W illiam s, head of the Department of .physiology of the College of Physicians and Surgeons, the report would not be ready " for some days." He added he was un able to make this more specific. As exclusively revealed in The World, this report is s expected to disagree In im portant respects with the claim of E thyi Gasoline Corpor ation that its product is entirely safe in public use. tThe Inform ation p u b lished by The W orld has been ques tioned by Dr, /W illiam s, in whose departm ent the Investigation has btton made, but he has not denied the report will be unfavorable. Ethyl G isoline Corporati' iced vesti 1 l a y had request! in General C u m m i n g a was call a gi tier.(I c o n fere n ce 1 to eonsidi r the tfilnrion ()f tl t. to pillila h e a lth , and t h a t 'i li m il i a,! t o s e n d il. N'< ' AT THE NATIONAL ARCHIVES 5. & a ,fj_ \ prohibit nation- t W ashii -oversy that hi death s of i workm resu lt of it is ci following connect I workmen tetraetl or experl- e conclusions formulated ring sale of the gas has Workers. ; voluntarily by the man- recognized that the T h is. action w as an- a three fold i a statem ent in which it it "as a controversy has ; scientists as to the uni TT with ects on th e p_ublic health o f U thyl use of this iel, and the gas on the hands and clothes. oral of nited States -* " a n invitatii for a eon? v * ,i _______ _ a t w hich all aval! ble informa- am ong th e m etallic poisons," says the 1 be considered, the directors of N ew York Industrial H ygiene Bulle iyl Gasoline Corporation have tin. "It w as first made by chem ists ided to discontinue distribution. A t in 1854. T he sym p tom s are both sub conference the corporation hopes jective and objective. The pajient that a constructive program of in first com plains o f persistent insomnia vestigation may be worked out." and u su a lly o f moire or less nausea A R epresentative Conference, with vom iting. H e feels restless and nervous and tired. H e loses all ap The conference will include repre petite and begins to lose weight. sentatives of the manufacturers, head Subjectively, one o f the first sym p ed by Dr. W . Gilman Thompson of tom s noticed is a marked drop in N ew York City, chairman of the med systolic blood pressure, which fre ical advisory board of th e industry; q u en tly fa lls below 100 and som etim es rep resentatives of the Federal Bureau below 90. T here m ay be som e dim i of Public H ealth and of the health nution in th e pulse rate and in some services of all the States and the four cases a subnormal temperature. Con largest cities in the country, and rep siderable -anemia develops, although resentatives of the National Research no paralysis. In the extrem ely severe Council, the National Safety Council ca?es there is acute delirium of sud and the American Federation of den onset of the type familiar with Labor. delirium trem ens. Death ensues from There will also be present and par exhaustion." ticipating various experts from or Lead-poisoning by inhaling exhaust ganizations and institutions such as from m otors using ethyl gas is said to the Bureau of Mines, the Chemical be a rem ote possibility, comparable in W arfare Service and Columbia U ni probability to the chance of carbon versity, w hich ha ve done a great deal m onoxid poisoning in the same ex of research work in connection with haust gas, and the maximum possible poisonous gases, and a number of quantity of lead d u st'in the air would scientists of national reputation, in offer less hazard than the carbon m on cluding Dr. David Edsall, dean of the oxid hazard that exists in every ga H arvard School of Public H ealth; Dr. rage a t the p resent tim e. Alice Hamilton of the Harvard School There is much more danger from of Industrial H ygiene, who is a rec the deposit of lead inside the motor ognized authority on industrial poison and exhaust passages, as an average ings; D r. Cecil Drinker and Dr. Reed car w ould probably use 500 gallons of H un t, also of Harvard; D r. C. E. A. e th y l g a s in a season , which would W inslow , professor of public health con tain 3.3 pounds of lead. Thus it is at Yale; Prof. Randall Henderson of possible that nearly two pounds of Yale, an expert on poisonous gases, very finely divided and po.l-onous lead and D r. W illiam H owell and Dr. Mar w ould be found In, th e sm all sp ace-oc Shall of Johns Hopkins University. cupied by the Under and exhaust A Great Discovery. gas passages, a n o y h js would consti tute a very real hazard to garage m e E th yl g a s Is made by adding to ch an ics and repairm en. ordinary gasoline a fluid of which tetraethyl lead is the active con The Greatest Danger. stituent. The discovery th at a very The third dangep, that of absorption sm all quantity of this fluid per gallon through the sk in , is said to be the w ill do aw ay with the knock that is greatest. Filling station attendants especially troublesome in high com and custom ers as w ell will spill the pression motors, or when a m ixture motor fuel over their hands and cloth Of k erosene and gasoline is used in ing. T etraeth yl lead is an oily com [ordinary motors, was hailed as one pound, readily absorbed by the skin, `of the great achievem ents of modern and being less volatile than gasoline (industrial chemistry. Scientists it rem ains on the hands longer. 'aim th a t it m ade possible th e build- H ow ever, sc ien tists are by no m eans j and operation of a high com- certain as to the extent of the haz ion m otor th at would double th e ards of u sin g et ion of the latent power in "That is wha hope to learn.' ,, .lin e . says Dr. Lewis The use of tetraethyl lead was assisting the I ompson, who is eon General In ar- jveloped by the General Motors Re- ranging the rence, "and it is our learcb Corporation after seven years purpose to asc afn w hat safeguards ex p e rim en t entists a.l work-at D n taryytoonf,fdiOicaihalllieolry.. shrfuld be throture, distrib' around the manufacand general u se of recognized this as one of the greatest the gas. If i are no known safe- , com plishm ents of the year in chemil engineering by awarding the guards, then shall endeavor to evolve a program o f needed investiga- ] Nichols medal to Thomas Midgely of ' ' ' ' " ' ; v; 'th e General Motors organization. "8 issued to the D u ring 1924 ethyl fluff tim e: D on't do trjbutod. fry-fn*HTMnsnm i"fc ^p u blic d e a a te g . lk ffifitfiS & -----------------. 1 j. ................mi ........ A J REPRODUCED AT THE NATIONAL ARCHIVES J Hyri e n i o L a b o ra to r y P t 0 * * /* i ii-is-i ieiiiuieb : K 5 D --M a I ( / ij ' April 8,1984. The a t t a c h e d f i l e c o n s i s t i n e of v a r io u s l e t t e r e by K . l . Beppe c o i the Leppe Motors Corporation , 151 Churoh S t r e e t , Hew f o r k U i t y , i e r e s p e c t f u l l y retu r n e d to the Surgeon G e n e r a l , f o r t ho a t t e n t i o n o f r .a e i s t u n t Sur re on General A . i- .S t in is o n , w i t h t h e f o i o.vinp oomiuont: Prow t h e t h e o r e t i c a l s t a n d p o i n t i t would seem t h a t a s e r i o u s h e a l t h h a z a r d n l r h t r e s u l t irom the uae ol load t e t r a e t h y l i n i n t s . - n a l c omit si on e n g i n e s i n a r o h p l a c e s a s v e h i c u l a r t u n n e l s , p-ara re u, and p o s s i b l y on crowd ed t h o r o u g h f a r e s * However, a t th e p r e s e n t time t h e r e i s no i n f o r m a t i o n at hand to show t h a t su ch a n hazard e x i s t s , one man ( s e e a t t a c h e d c o r r e s p o n d e n c e ) r o in ^ so f a r u s to s ta te th a t the load ie deposited on tea i n t e r i o r w a lls o f t h e c o m b u s t io n chambers and n o t d i s c h a r g e d t h r o u g h the e x h a u s t . I f t h i s bo tru e t h e h e a l t h hazard t o the p e n e r a l p u b l i c c o u l d b d i s regarded. *1 p r e v i o u s memorandum sub a i t t e d y trie H, i e n i o La b o ra to r y on November 2 2 ,1 9 2 2 , ^ o in te out thiut t h e u t a o f the compound u n u e r o r d i n a i y c o n d i t i o n s would be t h ee. r 1 tinwa {j t e s t o f t h e h a z a r d t o human Lei The pc. s i b i l i t 3x 3v* fr s te d of o b t a i n i : n p<e p o r t s f ro m t no liHUuf ic u r e r b o f th. 3 I t ad t e t r a e t iyl compound in r e p a r t i t o any o f f s e t s n o t e d i n t h o ;;e h o h uve 4- en -exposed t o t h e ffa8 d u r i a c x pe r 5mo r.t a 1 t r i ni . e L a c k ! n sue' i n f - r n i.i t i on " ianctj 1 .oeeo ' *; V- , ' 1,2,C'"*0 on s u c h ex i e r i me n t . i l d a t a a b i r : - i n c o l i e (3t e r : ;/ 1'r;f* ' i r3 oi Mine 8. From r e e a t c <? --uni c a t o n * j t r t h a t i?\ re-.u i t j a u n d e r s t o o d t r a t t h e i r ex QS1r* me nt s t o i a t e a r c r e , i r e , b u t t h i a 1 on -e r per l od o f t i me i e nnee s sa ry b a o OV .c ir r i on o u t. In vi of t r c pro 'v s 'i ` 1' exr>rlp.er.tr of t ' i s uu. v of . i n o s and CX;e l a c k o f i ni orma"! 5on c on .e r n i n d e l e t e r i o u s ^? s u i t s i o i l o i r ^ e:cOOSU '5 li huma x b e i n s i t mould se am a d v i s a b l e to w i t h h o l d Op i n i on, i o r th o t i n e t s 3n . a s t c t h e h e a l th i . p a r cl. k O t i n i > i >- i . I REPRODUCED AT THE NATIONAL ARCHIVES 1 (( con . December DO, 1 9 . h r . I-. . DuPont, Chairman, h o a r d , L. I . DuPont de Kauours and Company, .. ilm m g t o n , D elaw are, Dear b ir: ^ r e p r e s e n t a t iv e o f t n i s S e r v ic e wno w as a e i a i l e d to a t te n d a r e c e n t m e e tin g o f t h e Am erican C nem ical S o c i e t y in Lew Yorji, nas rep o rtea to the Bureau upon tne proposed use o f lead te tr a etn y l in connection w itn f u e ls for g a so lin e e n g in es, v.rich s u b je c t was d isc u sse d at tne m e e tin g , and i t appeared t h a t tne DuPont ae D etou rs Company w as i n t e r e s t e d in tne d evelop m ent and commercial in tro d u ctio n of t h is su b stan ce. Innsmucn as i t i s u n d erstood th a t wnen employed in gas o lin e e n g in e s, t n is su c s-a n c e w i l l add a f i n e l y uiv idea and to n d i f f u s i b l e form o f lea d to th e e r n a u s t g a s e s , ana fu r th e r m o r e , s in c e _ead p o is o n in g in human b e in g s i s o f the cu m u la tiv e ty p e r e s u lt in g fre q u en tly from tne d a ily in tak e o f m inute q u a n titie s , i t seems p e r tin e n t to in q u ire w netner th ere :;.ignt not be a decided h ea lth hazard a sso cia ted w ith the exten sive use of lead te tr a eth yl in en gin es. B e lie v in g th a t tn is phase o f tne q u e stio n must nave re c e iv e d a t t e n t i o n from, tn o c e i n t e r e s t e d in tne p r o j e c t , I an w r i t i n g to m e a r e w n etner your com-, any n a s c o l l e c t e d any e x p e r im e n ta l or o th e r d ata te a r in g upon the danger o f lea d p o iso n in g from th is source. urs, Luigeon g en era l. C NATIONAL a r c h iv e s REPRODUCED AT TH 1 ittfiii lit.t.. ---..-u TREASURY DEPARTMENT UNITED 8TATE8 PUBLIC HEALTH SERVICE W a s h in g to n , D .C . l6 Ssventi: S t r e e t , S. W. Rocrn 1-3^9 "c " B u ild in g January to / . F . SV R ese& rw i TT^ ,1 4. - O 42 fi >i s t a n v o u x %- 4- 4 j p $ t l i n s o f an in MHKSflHSRS aSk ff gativn Into the possibiallnjurictta effect. of organic load compounds as additions IHCbH B B P " The proposed Introduction of lead te tr a ethyl as an ad mixture to g a solin e should unquestionably be considered from the point of view of it s possible injurious nature to the publlo health. ww.M 1 V fj& r .^ 'TD > There i s every reason to b eliev e that organic lead com founds of th is type as suoh are highly to x ic when Introduced into he human body. The would therefore probably appear In the manufacture of tetra ethyl lead on a large sc a le . The to x ic o lo g ic a l aotlon of th is subotanoe should therefore be in v estig a ted on animals with particular referenos to the amoun poison required to produoe acute and chronic lead poisoning and channels of absorption of the poison Into the animal body. The flCQond h e a lth hazard Involved in the use o f th is ohemio&l would probably oocur through th e a b so rp tio n o f le a d by persons handling g a so lin e oontalning lead te tr a eth y l. Experiments should th erefore be carried out to determine the v o la t ilit y o f lea d t e tr a eth y l as contained in a fin ish e d g a so lin e mixture under v a r io u s c o n d itio n s o f tem perature, and th e to x lo e f f e c t o f such vapors upon an im als. The poisonous e f f e c t o f suofa m ixtures ehould a ls o be e s ta b lis h e d w ith regard to the a b so rp tio n o f le a d when th e m ixture in liq u id form la applied to the sk in . The th ir d h ea lth hazard may c o n s is t in the p o s s i b i l i t y o f p oison in g due to the admixture of lead oxid e to the motor exhaust gases, it is quite p ossib le that gasoline containing lead tetra e th y l might produoe exhaust ga ses co n ta in in g a la rg e amount o f f in e ly d iv id e d le a d o x id e , which would contam inate the a ir o f garages and aOOomobile rep a ir shops to such an ex ten t th a t persons b rea th in g t h is a ir over a considerable period of time might take in s u f f ic ie n t lea d eo as to cause chronic lead poisoning. S im ilar p o s s i b i l i t i e s of le a d p o iso n in g might e x is t in v eh icu la r tu n n els such ae the New York tu n n e l. Tt i s a ls o p o s s ib le th a t in con gested la rg e o i t i e e under fa v o ra b le wind c o n d itio n s enough lead oxid e might accum ulate as a fin e duet in the a ir so as to produoe con d itions which might be dangerous to p*rsone exposed to th is a ir . T oxicological experiments should th erefo re be performed to determine the to x ic e f f e c t of exhaust g a ses developed by motors burning g a s o lin e co n ta in in g lea d te tr a e t h y l, th ese experiments to be performed on various ep eoies o f animals under conditions sim ilar to those ob taining in the actu a l use of t h is f u e l . This would req u ire methods fo r the accu rate e stim a tio n o f le a d in a i r , and methods fo r the e stim a tio n o f le a d in the excreta of animals exposed to lead contaminated a ir . CV/Brd Carl V oegtlin , P rofessor of Pharmaoology. %1! i' ) ... V i Ih i Dr* Norman Roberts, Quarantine Station, Staton Island, N. Y. My dear Doctor Roberts:- I h ave yours o f November 1 3 th , w ith e n c lo s u r e . I th in k you h a v e g o t t e n th e s i t u a t i o n rem ark ab ly w e l l , and I have no comments or c o r r e c t io n s to make. However, s in c e t a lk in g w ith you, we have b een m aking some rough c a l c u l a t i o n s , and fin d th a t in the v eh icu la r tu n n el w ith th e v e n tila tio n as proposed by F ie ld n er , which is con sid ered a b so lu te ly e s s e n t ia l to avoid the dangers o f carbon m o n o x id e, a man w i l l ta k e in t o M s lu n g s a p p r o x im a te ly l / Z milogram o f lead in the fou r hours th a t F ield n er c a lc u la t e s as a maximum l e n g t h o f t i n e h e sh ou ld spend in t h e t u n n e l. How much o f tx t h is 1 /2 m ilogram w i l l be absorbed i s , o f c o u r s e , an im p o ssib le q u e s tio n to answer at the p r e se n t tim e, but i t d o e s not seem l i k e a v e r y l a r g e amount a t the m o st. p e o p le m ust b e g e t t i n g t h i s much lea d r e g u la r ly a lr e a d y in a g r e a t many o th e r l i n e s o f work. I s in c e r e ly w ish that you m ight be d e ta ile d on t h is prob lem , a s I an su re th a t we could work to g e th e r w it h m utual s a t i s f a c tion . A lw ays w ith th e k in d e s t p e r s o n a l r e g a r d s , I am Very tr u ly yours, (SIGNED) BiOMAS 11IDGLEY, J R ., C hief E ngineer, Fuel S ection . TM -Jr.- D KJDR