c 0 P Y Chicago, Illinois July 15, 19*40 Mr. 0. 3.

March 2, 1937 Mr.

A sample of molding sand from the American Crucible Products Company, Lorain, Ohio, was submitted for examination.

March 12, 1929 Dr.

September 16, 1930 Mr.

June 29# 1933 Dr W.

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Telephone MB 1965 368 C0LLIN3 STREET - MELBOURNE Cl Our Ref 14/F Your Ref ST/3/112 23rd July, 1947.

December 20, 1371 Miss Marjorie W.

Maroh 4 , 1D4 V4r.

December 9 19*& Hr.

Horesbor I t , 19W* Mr.

UNIVERSITY OF MICHIGAN SCHOOL OF PUBLIC HEALTH ANN ARBOR.

Buenos Aires, Argentina, March 9, 1937.- Dr.

C a b i e A D D RESS pr ew a y - Prentiss Wbers Products Co* S T O V ES RA N GES CA M P STO VES - PI CN I C I CE BO XES H EA TERS O i l FI RED FLO O R FU RN A CES W I S C O N S I N RA PI D S\ W I SCON SI N October 19, 1950 The Kettering Laboratory College of Medicine - Eden Avenue Cincinnati 19, Ohio .