' Gasoline Tax Found.

, F o u rth , se v e ra l thousand p erson s have been engaged in.the m anufacture of te tra eth y l lead sin ce 1923, the nu m bers having grow n m o re o r le s s stead ily 3ince 1926.

16 A 17 Up tdJunS i0fch,1926/yl ;-u h ?

C. 1926 I \ !

This understanding v;a|s to the effect that the questions and issues arising out of the distribution and; use of leaded gasoline would be investigated fully at the expense of the Corporation, with the full knowledge of' the Service in the matter of procedures, methods and results.

A 17th November, 1926.

Professor Emeritus of Occupational Medicine Department of Environmental Health College of Medicine University of Cincinnati Cincinnati, Ohio ON AN APPRAISAL OF THE POTENTIAL HAZARD OF THE ABSORPTION OF LEAD FROM THE AMBIENT URBAN ATMOSPHERE BY THE GENERAL POPULATION OF THE UNITED STATES The problem posed in the title of this statement was initiated, in relation to the general use of gasoline containing lead as a fuel for motor vehicles, in 1926.

Professor Emeritus of Occupational Medicine Department of Environmental Health College of Medicine University of Cincinnati Cincinnati^ Ohio ON AN APPRAISAL OF THE POTENTIAL HAZARD OF THE ABSORPTION OF LEAD FROM THE AMBIENT URBAN ATMOSPHERE BY THE GENERAL POPULATION OF THE UNITED STATES The problem posed in the title of this statement was initiated; in relation to the general use of gasoline containing lead as a fuel for motor vehicles, in 1926.

m 90 MINERAL RESOURCES, 1929---- PART I IMPORTS Imports since 1920 are shown in the following table: Tantalum ores imported into the United States, t9$0-1929 Year Pounds Value Year Pounds Value 1 60 / * 1, 229 \ 1 6,786 6,600 788 1,327 3,031 1026 .............................................. 1926..................................... ................ 1027...................................................... 1028...................................................... 1029...................................................... 6,022 350 116,110 16, 250 $1,347 .149 20,013 10,413 i Classified as "Ferro-alloys (tantalum)." i Classified as "Steel-bardenlns ores (tantalum)." i Classified as "Ores oMerro-alloylng metals (tantalum)."

Aaoeg the*# are radiation shielding fren the X-ray row to atonic energy installations, insulating buildings against noises aad vibration*, providing packaged power in the fora of storage batteries, electrto aad cceeualcetlon cable shielding, soldering la aodern electronic aaoufactur* leg, aad aa aa additive to gasoline to give higher performance sod greater fr fuel econony for olvlllaa aad allItary use.

.: Properties of hlgh-boiUne petroleum products: quantitative analysis of tumor-response data obtained from application of refinery prod ucts to skin of mice, *335 Blood: behavior of circulating blood and of bone marrow' In silicosis, 93 changes In blood level of humans chronically ex posed to low level gamma radiation, 516 fats and-lipids: chylomicron count as indicator of phosphorus poisoning [Fleming A Colllngs), *567 hematological differentiation between silicosis and sUicotuberculosis, 508 protein fractions in silicosis and sUicotuberculosis. 91 quantitative lead determination In drinking water and blood, 609 study of diagnosis of lead poisoning: new method of assay for lead in blood with application to other organic media, 606 Bloomfield, B.

Concern tws been ex prewed that in creased burning of gasoline by the interns] combustion engine and the wider use of lead in indudry sre esusirvr additional exposures to lead in our environment At the same 4 Arrh tfsaftfr--Vaf If.

Concern tws been ex prewed that in creased burning of gasoline by the interns] combustion engine and the wider use of lead in indudry sre esusirvr additional exposures to lead in our environment At the same 4 Arrh tfsaftfr--Vaf If.

After the 1920s, environmental pollution by lead caused by the introduction of tetraethyl lead in gasoline became an alarming public health problem.

Shoot packing is made from a mixture of asbestos, rubber, lithargo, whiting, sulphur, zinc oxide and high test gasoline.