Nor do we know for a certainty why it is that the blood does not develop a sufficiently elevated concentration of lead when tetraethyl lead is absorbed into the body.

I* DuPont de Nemours and Company concerning the use of leaded gasolines has described a somewhat circuitous course, and has reached m y desk because this laboratory has been concerned w i t h the Investigation of the possible hazards which might be expected to arise from the use ... of gasolines containing tetraethyl lead, I am glad to make reply to your questions# The possibility of the absorption of lead on the part of garage mechanics by reason of the lead content of gasoline has been carefully investigated.

-x/ Superintendent, Tetraethyl Lead & Freon r / W.

Medlin* DUP050052861 "FREON" AND TETRAETHYL LEAD 7/1/78 (3) DUP050052862 WORKS ENGINEERING DEPARTMENT Jt V.- ?

Due to: Ingestion of tetraethyl lead solution.

Due to: Ingestion of tetraethyl lead solution.

Wihera Superintendent, Tetraethyl Lead "Freon" V.

Segment Results and Other Financial Information Ethyl Corporation and Subsidiaries Net sales (a): Petroleum additives Tetraethyl lead Total Segment operating profit (toss): Petroleum additives before nonrecurring items Nonrecurring items (b) Total petroleum additives Tetraethyl lead Nonrecurring items (b) Total tetraethyl lead Segment operating profit (loss) Add back current year nonrecurring item to reconcile Segment Reporting to Consolidated Statements of Income (c) Corporate unallocated expense Interest expense Pension settlement expense including second quarter 2001 excise tax provision (b) Pension (expense) income Other (expense) income, net (b) Loss before income taxes Net (loss) income: Earnings excluding nonrecurring items Nonrecurring items (b) Net (loss) income: Basic and diluted earnings (loss) per share: (d) Earnings excluding nonrecurring items Nonrecurring items (b) Net (loss) income (In millions except per share amounts, unaudited) Second Quarter 2002 2001 ___________Six Months 2002 2001 $ 172.5 3.0 $ 175.5 $ 175.5 2.1 $ 177.6 $ 321.4 4.7 f 326.1 $ $ 381.4 13.5 394.9 $ 13.3 0.3 13.6 3.4 - 3.4 17.0 $ 10.6 (50.3) (39.7) 10.0 - 10.0 (29.7) $ 24.0 $ (1.2) 22.8 7.8 (1.6) 6.2 29.0 . (4.0) (6.6) - (1.5) (6.6) $ (1.7> . (5.1) (9.8) (88.2) 2.8 (1.0) $ (131.0) 3.1 (6.3) (13.6) (3.0) (9.6) $ (0.4) $ 18.9 (73.6) (54.7) 20.6 - 20.6 (34.1) (11.0) (18.0) (88.2) 5.6 (3.1) (148.8) $ 1.4 (3.9) (2.5) $ 5.1 (99.9) $ (94.8) $ 2.3 (6.4) * (4.1) $ 8.6 (114.7) ($106.1) $ 0.09 (0.23) $ (0.14) $ 0.30 (5.98) $ (5.68) $ 0.14 (0.38) $ (0.24) $ $ 0.52 (6.87) (6.35) (a) Certain amounts have been reclassified to conform to the current presentation. ...

Tetraethyl V~ effect -of many compounds tested but leads to a slight precip- | itate.

I am returning herewith, your type- _ written copy of your recent appraisals of lead basaras ssd l :v.

In the course of the past several years I have seen several fatal oases of lead poisoning in children *3 the result of Ingesting lead from toys, play pens, and in one instance contaminated food, I have also seen several cases of fatal encephalopathy in eonneotlon with the manufacture of white lead, I have also had direot knowledge of ala or seven deaths from acute organic lead poisoning in connection with the cleaning of storage tanks heavily contaminated with tetraethyl lead or its decomposition products, I can not con ceive of these as having muoh significance in relation to the general question of mortality.

I was compelled to ao so years ago, through my medical responsibility for men engaged in industry, (at first) in a very dangerous and unusual industry in which tetraethyl lead had to be handled safely, and then in the larger field of industry in the larger and wider handling of inorganic lead compounds.

In the course of the past several years I have seen several fatal oases of lead poisoning in children *3 the result of Ingesting lead from toys, play pens, and in one instance contaminated food, I have also seen several cases of fatal encephalopathy in eonneotlon with the manufacture of white lead, I have also had direot knowledge of ala or seven deaths from acute organic lead poisoning in connection with the cleaning of storage tanks heavily contaminated with tetraethyl lead or its decomposition products, I can not con ceive of these as having muoh significance in relation to the general question of mortality.

Lead tetraethyl, Pbf^Hj)^: used in gasoline.

Lead borate, ( B O /i employed in certain plastics. / Lead sulfide, PbS: occurs naturally as galena. 1 Lead tetraethyl, ^ ^ 2%)^: used in gasoline.