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59 items
Memorandum and account book belonging to Charles A. Ronne
- 1879-Nov – 1880-Mar
Memorandum and account book belonging to Charles A. Ronne. The majority of the pages are blank. Ten pages contain a record of Ronne's expenses from November 1879 through March 1880. After a break of several pages, there…
- Creator Of Work Ronne, Charles A.
- Subject Dyes and dyeing, Antidotes, Chemistry, Home economics, Metals--Analysis, Ronne, Charles A.
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Gascoyne Laboratories facility in Baltimore, Maryland
- 1970s
Close-up view of chemist Francis Ptak holding a rack of Nessler tubes at a Gascoyne Laboratory facility located in Baltimore, Maryland. A Perkin-Elmer automated, multi-element spectrophotometer is visible in the…
