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S e p te m b e r 3, 1955 M r.

ETHYL CORPORATION RESEARCH AND ENGINEERING DEPARTMENT....

March 27, 1953 Dr.

I N D U S T R I A L H Y G I E N E F O U N D A T I O N O F AM E R I CA , I N C.

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tfAMES J .

'A.- - ' October H * 1950 Dr.

TH E J E F F E R S ON M ED ICAL COLLEGE OF P H ILAD ELP H IA 1025 WALNUT STREET DEP ARTM EN T O F P RE VEN TIVE MEDICINE OlViSION OF I N D U STR I AL MEDICINE March 31, 1953 Dr.

TH E JEFFER S ON M ED ICAL COLLEGE OF P H ILAD ELP H IA 1025 WALNUT STREET DEPARTM EN T OF PRE VEN TIVE MEDICINE D IVISION O F IN D U STR IAL MEDICINE March 6, 1953 L'r.

THE JEFFERSON MEDICAL COLLEGE OF PHILADELPHIA 1025 WALNUT STREET DEPARTMENT OP PREVENTIVE MEDICINE DIVISION OF INDUSTRIAL MEDICINE February 3, 1953 Dr.

Proposal of Dr, Shand Concerning Lead Recovery New York Baton Rouge Detroit May 19, 1953 File: 30.2010 50 160.28 Enclosed is copy of each of the following letters: Dr, Edwin V/.

DRUG NOTTI NGHAM TELEPHONE: NOTTI NGHAM 45501 BOOTS PURE DRUGCO, LTD.

June 18, 1958 D r.

August 2, 1956 Dr.