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Subject
- Bredig, Max Albert, 1902-19771,141
- Chemical industry991
- Corporations991
- Bredig, Georg, 1868-1944949
- Scientific apparatus and instruments636
- Advertising, Industrial546
- Hercules Incorporated516
- Chemists457
- Emigration and immigration392
- Employees365
- Dow Chemical Company331
- Advertising322
- Naval stores300
- World War (1939-1945)275
- United States. Bureau of Chemistry and Soils271
- Homburger, Marianne, 1903-1986259
- United States. Department of Agriculture257
- Nitrogen fertilizer industry233
- Jewish Holocaust (1939-1945)228
- Chemistry225