PLE A SE A D D R E S S ALL CO M M U N IC A TIO N S T O T H E COM PANY June 29th 1936 Messrs* Nelson L* Buck J*C* Cox W*C* A rkell , P*L* Becker J.S .

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July 9, 1932 Mr A.

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November 10, 1931 :.fp.

INTER-OFFICE CORRESPONDENCE Et hyl Gasol ine Corporat ion Chic ago Of f ic e . 310 So ut h Mic hig an a v e nue Chicago, Il l inois April 3, 1939 Br.

Et hyl Gasol ine Corporat ion J.H.SCHAEFER MANAGER Dr.

IRVING GRAT, M.D..

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LeadfaidustriesAssociation CUMTCm H.

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7-19-77 The Physiological Tolerance of Apparently Healthy Human Individuals for the Daily Absorption of Inorganic Lead Salts Over Extended Periods of Time Introduction ( It has been known for centuries that the absorption of inorganic compounds of lead, in sufficient quantities, under appropriate circumstances, and over considerable periods of time, are capable of inducing poisonous effects upon man.

November 12, 1931 Mr.

INTER-OFFIC E CORRESPONDENCE CC.: D r.