It would then appear justifiable to proceed with further development studies on TML. ' ' TEL - GASOLINE , Run 3 consecutive weeks using tetraethyl lead (3 ml per gallon).

In his opinion the Surgeon General's office would look with distinct disfavor on the substitution of tetramethyl lead for tetraethyl lead.

(They do not prove the existence of such toxemia, since approximately corresponding lead concentrations may be found in the absence of symptoms. normal lead concentrations in the brain range from 0.01 to 3.09 milligrams per 100 grams, in our experience; elevated concentrations without of cerebral or other lead intoxication range up to O.35 milligrams per 100 grams in several cases on which we have adequate data. ) In a series of cases of encephalopathy due to absorption of tetraethyl lead, the lead concentrations in the brain ranged from 0.46 to I.65 milligrams per 100 grams, while in encephalopathy due to inorganic lead in the case of children.

(They do not prove the existence of such toxemia, since approximately corresponding lead concentrations may be found in the absence of symptoms. normal lead concentrations in the brain range from 0.01 to S-.09 milligrams per 100 grams, in our experience; elevated concentrations without signs of cerebral or other lead intoxication range up to 0.55 milligrams per 100 grams in several cases on which ve have adequate data. ) In a series of cases of encephalopathy due to absorption of tetraethyl lead, the lead concentrations in the brain ranged from 0.46 to I.65 milligrams per 100 grams, while in encephalopathy due to inorganic lead in the case of children, these concentrations ranged from 0.94 to 0.58 milligrams per 100 grams.

Both have been committed heav ily to the use of tetraethyl lead since it was first developed in 1921 to elimi nate engine knock.

Jones rather skeptical of the significance of lead In this case, and I believe my conversation left him convinced that lead was in no sense to be blamed.

sorption of lead.

I as fulfilling the promise made In our telephone conversation of yesterday by sending you a series of articles which have to do with the problem of lead absorption In relation to leaded gasoline, as well as an article of my associated on gasoline dermatitis which I think will be of considerable Interest to you* I call, your attention specifically to the discussion and the citation of all the literature on the subject of Ethyl Gasoline is an article entitled An Appraisal of the Lead Hazards Associated tilth the Distri bution and Use of Gasoline Containing 'Tetraethyl Load Part 1 " which was published in the Journal of Industrial hygiene in March 193k* An article on the some subject hart IX gives rather crucial evidence, I boliovo, of the lack of load exposure associated with the handling of gasoline at filling stations*.

His work in this field began In the very eariy days of mass manufacture of automobiles with the purpose of achieving safety and high health standards in the manufacture and use of tetraethyl lead for gasoline, The excellent, record maintained In this area can he traced largely io work performed by Dr.

Id U.S.A. major use for batteries followed by tetraethyl lead; sheet and pipe not such used for bulldli^ despite present lov prices.

His work in this field began in the very early days of mass manufacture of automobiles with the purpose of achieving safety and high health standards in the manufacture and use of tetraethyl lead for gasoline.

Id U.S.A. major use for batteries followed by tetraethyl lead; sheet and pipe not such used for bulldli^ despite present lov prices.

Perhaps one of the most dramatic cases of the effect of additives is the well known example of tetraethyl lead.

Interactions of Lead with Iron...........

His work in this field began in the very early days of mass manufacture of automobiles with the purpose of achieving safety and high health standards in the manufacture and use of tetraethyl lead for gasoline.