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Lead Industries Association, Inc. 292 Madison Avenue New York, N.

THE AMERICAN PUBLIC HEALTH ASSOCIATION, me.

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GLIDDEN-DURKEE PROM* Mr.

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Lead Industries Association, Inc. 292 Madison Avenue New York, N.

May 7, 1970 Professor Enrico C.

ETH YL CORPORATION 1 6 0 0 W E S T E IG H T M I I E ROAD F E E N D A L E , MICHIGAN' <16--12O D ecem ber 9, 1970 har d A Sca l es ic e P r e s i d e n t D r.

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The Associated Octel Company Limited P.O.

Hi ghl and Tower s Apar t ment 1504 1071 Cel est i al St r eet Ci nci nnat i , Ohi o 45202 December 27, 1977 Dear St an: I had your l et t er of November 14t h some t i me ago, but I di d not r espond at once, f or t he si mpl e r eason, t hat I di d not know qui t e how t o do i t , sui t abl y.

San Dtego State College 3 a n iep, California gins September 25, 1970 Dr.Philip A.