Document 0g1VBY0V9zz3jkKakkbEz8jwV

PERLITE MANUFACTURING CO, CHARLES PETTINOS (PRODUCERS OF GRAPHIT 1 EAST 42nd ST., NEW YORK. NY JOINED: 1/4/37 RESIGNED: 12/31/37 W. H. LAROS THE PERKINS-ELMER CORP. MAIN AVE.. NORWALK, CONN. JOINED: 1/27/64 RESIGNED: ? MARGARET D. WOOD. LIBRARIAN LAST CORRESPONDENCE IN LATE 1967