Skip to Content
You searched for
Rights No Known Copyright Remove constraint Rights: No Known Copyright Subject Coal--Testing Remove constraint Subject: Coal--Testing Subject Chemists Remove constraint Subject: Chemists

Search Constraints

Search Results

    • 1970s

    General view of assistant chemist Lawrence Koerber using a Perkin-Elmer Model 403 Atomic Absorption Spectrophotometer to test an ash sample in a Peabody Coal Company laboratory. Per notations accompanying the…