It is certainly not to be regarded as dangerous in the same sense or to the sane degree that lead is dangerous.

' r ' BeCaiipe'Of the "widespread use of states .pending- investiga righi / o l l o t g COI ernee "`^ f h ^ l l S lead poisoning on th e ' birtnab syi fir, Dr.

Unaer these circumstances, the glaze goes partially into solution in acidic foods and salad dressings, and s u c h ceramic ware used with sufficient frequency in the household aas induced cases of lead poisoning among these w h o use such ware.

Fitz gerald states that your assistance has been of great benefit to him in the proper analysis of the claim, which is predicated on the contention that Skowronski claims he contracted lead poisoning as a result of washing his hands and arms twice a day for about three weeks with H-C Sinclair "regular" gas.

I am sending you herewith another article which is properly to be grouped with the four papers which I have sent yon, sine It is the logical sequence in the application of our data to the industrial problems Involved In lead compounds.

Hot**with-sbanding the mis-tkse of what is intended solely for an automobile fuel, there have been no authentic cases of lead poisoning as a con sequence of the use and distribution of this gasoline.

Aotually the men who are experienced in industrial practice are much more likely to be competent in this field than is the general laboratory diagnostician, since the latter sees very few oases of lead poisoning and usually is not as familiar as he should be with some of the problems of a hygienic or medicot-legal nature which arise from industry.

INTRODUCTION There is a great need for a simple chem ical test which will give- an early indication of dangerous lead absorption or incipient lead' poisoning.

A) lead-baaed Paint Poison Prevention Act (HR 19172) has been passed and was signed by the President the week of January 11.

It is not uncommon to find analytical results of this type among rather large groups of persons among whom no cases of lead poisoning have been seen.

I, under treatment for lead poisoning. 1, Nature of Inspection: The work area in which the ill man had been employed as a grinder of brass castings xms inspected and samples of room air collected for determination of lead content, A sample of dust from a chipping bench was collected for determination of free silica content.

It is very difficult to obtain 24-hour specimens, therefore we distribute lead-free bottles to the workers which are used by them for voiding early morning urine at home* This pre caution is taken in order to prevent any contamination with lead from work olothes or other sources in the factories* With only a few exceptions, the specific gravity of these urines does not vary much from the mean specific gravity* However, we also receive samples from doctors with private patients who are suspeoted of lead poisoning and it happens very often that speoiflo gravity values of these urines are in the far extremes* N 7957.01 / Robert E* Rehoe M D - 2- September 8 1949 / W e had, for instance, the following oases of suspected lead poi- sonings t ' Speoifio Adjusted Lead Finding Gravity Lead (1) 0*086 m g * A * urine (2) 0*065 m g * A * urine (3) 0*130 m g * A * urine 1*004 1*002 1*002 0*516 mg* 0*760 mg* 1*560 mg* Not one of these three patients showed any severe symptoms of lead poisoning whereas we found many oases where lead content ranging from 0.16 to 0*40 showed marked beginning plumbism* W e will appreciate your comments on this matter which we would find very valuable from a man of your experience and ability* Very truly yours RKHfjrrp Rudolph R* Waldman, Ph*B* Principal Biochemist Kf 0007581

When available, this information would be invaluable in reporting the true scope of source-based lead poisoning in the United States.

McCord has been good enough to suggest to us that we write you for literature upo& the pre vention and treatment of lead poisoning.

Standard Oil Company of New Jersey, based on alleged lead poisoning, is expected to be tried at Wilson, N.