J., assignor to National Lead Company, New York, N.

J., assignor to National Lead Company, New York, N.

trol of "lead air pollution" by limiting the lead content in

All of our evidence Indicates that within the rather wide variations in dietary lead, o&Ly small changes occur in the lead excretion and in the lead content of the tissues.

Air, lead in.

Paint with LEAD DUTCH BOY This.trademark, a guarantee of high quality, is on all Dutch Boy products-- white-lead, red-lead.

Lead powder. 100 .... 17' in ut.

Sincerely, DMB:so Enc: "Lead David M.

However, most clinical measures of lead toxicity have been related to blood-lead measurements, making blood-lead levels a commonly used measure of lead toxicity and absorption.

Lead line.

Lead pigments sold in the United States, 1919--1923, in short tons Year White lead Dry In oil Sublimed lead or basic lead sulphate Bed lead White Blue Orange mineral Litharge a 1919................... .'

--Non argentiferous lead o a soft lead can be produced without e known as soft-lead ores.

Preface .v r Chapter I Introduction Chapter II He thods Chapter III The Sources of Lead Absorption in the Modern Community Chapter IV The Absorption and Excretion of Lead in Primitive Life Chapter V The Magnitude of Clinically Significant Exposure to Lead Compound Lead Absorption and Lead Excretion in the Lead Trades Chapter VI An A^raisal of the Lead Hazards associated with the Distribution and Use of Gasoline containing Tetraethyl Lead Chapter VII Certain Considerations in the Prevention!

Lead as a Well-known Cause of Occupational Disease Lead poisoning is one of the most frequently observed causes of occupational disease.

Quantitative Evaluation of Lead and Biochemical Indices of Lead Exposure in Physiological Media ....................................... .................................. > Metabolism of Lead ................_____ ___ .......... ..